.A. Mustafa, Ferhad. “Effects of Using the Multi Learning Instruments in Learning Some Greco Roman Wrestling Holds”. Al-Rafidain Journal For Sport Sciences 15, no. 51 (June 1, 2009): 24–42. Accessed October 2, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50775.