احمد خالد ا., & Mahfooth Abdulkader ز. . (2025). The Effect of a Physical Training Curriculum Using the Second Part of the Second Zone of Interval Training Zones on Aerobic Efficiency, Fatigue Index, and Speed Endurance of Advanced Soccer Players. Al-Rafidain Journal For Sport Sciences, 28(88), 1–23. https://doi.org/10.33899/rjss.v28i88.53578