diff --git a/odoo/custom/src/private/project_reference/README.rst b/odoo/custom/src/private/project_reference/README.rst
new file mode 100644
index 0000000..aa085b6
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/README.rst
@@ -0,0 +1,73 @@
+=================
+Project Reference
+=================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fproject-lightgray.png?logo=github
+    :target: https://github.com/OCA/project/tree/14.0/project_reference
+    :alt: OCA/project
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/project-14-0/project-14-0-project_reference
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/140/14.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+This module extends the functionality of projects to support a reference for each project task
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/project/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/project/issues/new?body=module:%20project_reference%0Aversion:%2014.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Watthanun Khorchai
+
+Contributors
+~~~~~~~~~~~~
+
+* Watthanun Khorchai <watthanun_t@hotmail.com>
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+This module is part of the `OCA/project <https://github.com/OCA/project/tree/14.0/project_reference>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/odoo/custom/src/private/project_reference/__init__.py b/odoo/custom/src/private/project_reference/__init__.py
new file mode 100644
index 0000000..0650744
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/odoo/custom/src/private/project_reference/__manifest__.py b/odoo/custom/src/private/project_reference/__manifest__.py
new file mode 100644
index 0000000..3a81933
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/__manifest__.py
@@ -0,0 +1,14 @@
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Project Reference",
+    "summary": "Add a reference to projects",
+    "version": "14.0.1.0.0",
+    "category": "Project",
+    "website": "https://github.com/OCA/project",
+    "author": "Watthanun Khorchai, Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "depends": ["project"],
+    "data": ["views/project_task_view.xml"],
+    "installable": True,
+}
diff --git a/odoo/custom/src/private/project_reference/models/__init__.py b/odoo/custom/src/private/project_reference/models/__init__.py
new file mode 100644
index 0000000..edf2d36
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/models/__init__.py
@@ -0,0 +1 @@
+from . import project_task
diff --git a/odoo/custom/src/private/project_reference/models/project_task.py b/odoo/custom/src/private/project_reference/models/project_task.py
new file mode 100644
index 0000000..ec8de7a
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/models/project_task.py
@@ -0,0 +1,9 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class ProjectTask(models.Model):
+    _inherit = "project.task"
+
+    reference = fields.Char(string="Reference")
diff --git a/odoo/custom/src/private/project_reference/readme/CONTRIBUTORS.rst b/odoo/custom/src/private/project_reference/readme/CONTRIBUTORS.rst
new file mode 100644
index 0000000..bebd186
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/readme/CONTRIBUTORS.rst
@@ -0,0 +1 @@
+* Watthanun Khorchai <watthanun_t@hotmail.com>
diff --git a/odoo/custom/src/private/project_reference/readme/DESCRIPTION.rst b/odoo/custom/src/private/project_reference/readme/DESCRIPTION.rst
new file mode 100644
index 0000000..fd57759
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/readme/DESCRIPTION.rst
@@ -0,0 +1 @@
+This module extends the functionality of projects to support a reference for each project task
diff --git a/odoo/custom/src/private/project_reference/static/description/icon.png b/odoo/custom/src/private/project_reference/static/description/icon.png
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index 0000000..3a0328b
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diff --git a/odoo/custom/src/private/project_reference/static/description/index.html b/odoo/custom/src/private/project_reference/static/description/index.html
new file mode 100644
index 0000000..2e42da3
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/static/description/index.html
@@ -0,0 +1,419 @@
+<?xml version="1.0" encoding="utf-8" ?>
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+<body>
+<div class="document" id="project-reference">
+<h1 class="title">Project Reference</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/project/tree/14.0/project_reference"><img alt="OCA/project" src="https://img.shields.io/badge/github-OCA%2Fproject-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/project-14-0/project-14-0-project_reference"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/140/14.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p>This module extends the functionality of projects to support a reference for each project task</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#bug-tracker" id="id1">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id2">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id3">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id4">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id5">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#id1">Bug Tracker</a></h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/project/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/project/issues/new?body=module:%20project_reference%0Aversion:%2014.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1><a class="toc-backref" href="#id2">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#id3">Authors</a></h2>
+<ul class="simple">
+<li>Watthanun Khorchai</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#id4">Contributors</a></h2>
+<ul class="simple">
+<li>Watthanun Khorchai &lt;<a class="reference external" href="mailto:watthanun_t&#64;hotmail.com">watthanun_t&#64;hotmail.com</a>&gt;</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#id5">Maintainers</a></h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.</p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/project/tree/14.0/project_reference">OCA/project</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/odoo/custom/src/private/project_reference/views/project_task_view.xml b/odoo/custom/src/private/project_reference/views/project_task_view.xml
new file mode 100644
index 0000000..7e91486
--- /dev/null
+++ b/odoo/custom/src/private/project_reference/views/project_task_view.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="view_task_form2" model="ir.ui.view">
+        <field name="name">view_task_form2</field>
+        <field name="model">project.task</field>
+        <field name="inherit_id" ref="project.view_task_form2" />
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='partner_id']" position="after">
+                <field name="reference" />
+            </xpath>
+        </field>
+    </record>
+</odoo>