DVD [name,category,type,price]

-> Add
-> Edit
-> Delete
-> Rental
    - New [1 Day]
    - Old [3 Days]
    - Rate for rent 20 Baht
-> Return
    - if return in time, no fine
    - if over, fine 10 Baht per days
    - if broken, fine 2 times of price

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Category [name]

-> Add
-> Delete

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Member [firstname,lastname,address,email,phonenumber,gender]

-> Add
-> Edit

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