Assist.Lecturer, Adnan Muhammad Shenawah and Assist. Prof. Dr. Abdulla Mohammed Tayawy, “THE EFFECT OF SIMULTANEOUS COMPETITION EXERCISES WITH THE (CROSS FIT) ON THE PERFORMANCE ENDURANCE OF YOUNG SOCCER PLAYERS”, Amer. Jour. of Peda. and Educ. Rese., vol. 11, pp. 235–254, Apr. 2023.