Ramkrishnan, R. (2018). Database Management System (15th.). Mc Graw Hill Education Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Ramkrishnan, Raghu. Database Management System. 15th. New Delhi: Mc Graw Hill Education Pvt. Ltd, 2018.
Lua MLA (9ú heag.)Ramkrishnan, Raghu. Database Management System. 15th. Mc Graw Hill Education Pvt. Ltd, 2018.
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