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Ramakrishnan, Raghu. Database Management Systems (Third Edition) GeeksforGeeks (2020, May 06). Difference between Database and DBMS. Retreived from here
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Pickell, Devin (2018, November 16). Structured vs Unstructured Data – What's the Difference. Retreived from [here](https://learn.g2.com/structured-vs-unstructureddata#:~:text=What%20is%20the%20difference%20between,collect%2C%20process%2C %20and%20analyze)
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Sisense. What is a Relational Database Management System. Retreived from [here](https://www.sisense.com/glossary/relationaldatabase/#:~:text=A%20relational%20database%20management%20system%20(RDBM S%20or%20just%20RDB)%20is,flat%20file%20or%20hierarchical%20database)