I.Abdullah, Nashwan, زیاد, عمار, and انمار. “Effect of Athletic Competition on Kidneys Function of Football Players”. Al-Rafidain Journal For Sport Sciences (RJSS) 12, no. 41: 236–249. Accessed September 17, 2025. https://ojs.uomosul.edu.iq/index.php/rjss/article/view/35646.