“The Effect of Arm Muscle Strength Training and Eye-Hand Coordination on Top Service Results  in Volleyball Junior Athletes” (2025) COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, 17(2), pp. 1578–1586. Available at: https://competitor.idjournal.eu/index.php/competitor/article/view/145 (Accessed: 19 March 2026).