Jasim, Omar. “The Effect of Using Two Styles Skills Training ( Single and Merged ) on a Number of Skillful Variables for Young Football Players”. Al-Rafidain Journal For Sport Sciences (RJSS) 21, no. 68 (June 24, 2025): 87–113. Accessed August 4, 2025. https://ojs.uomosul.edu.iq/index.php/rjss/article/view/11304.