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Student Interest and Motivation in Participating in Volleyball Extracurricular Activities at SMP. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2026 Feb. 11 [cited 2026 Feb. 13];18(1):0691-702. Available from: https://competitor.idjournal.eu/index.php/competitor/article/view/550