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The Effect of Underhand Passing Variation Training on Forearm Passing Skills in Volleyball Extracurricular Students at SMA Negeri 8 Palembang. Compet. J. Pendidik. Kepelatihan Olahraga. 2025;17(3):2929-2936. Accessed March 19, 2026. https://competitor.idjournal.eu/index.php/competitor/article/view/416