Ahmed, Dr. Ban Faisal, trans. 2026. “THE EFFECT OF THE INITIAL SHOULDER ANGLE AND ARM ANGULAR VELOCITY ON BALL SPEED DURING THE JUMP SERVE IN MALE HIGH-SCHOOL VOLLEYBALL STUDENTS AGED 16–18 YEARS IN BAGHDAD”. International Journal of Advance Research in Education & Literature (ISSN 2208-2441) 12 (3): 58-62. https://doi.org/10.61841/frtqcg17.