Mahmoud Mohammed, Esam, عصام, Alaa F.S. AL_Mukhtar, and الاء. 2025. “Measuring of Oracle Optimizer Performance for Object-Relational Database Entities”. AL-Rafidain Journal of Computer Sciences and Mathematics 5 (2):125-40. https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19933.