Ridwan, Mukhtar, Ayi Rahmat, and Ira Arini. “Correlation of Volleyball Extracurricular Activities Against Student Discipline at SMA Negeri 1 Panggarangan”. JOURNAL RESPECS (Research Physical Education and Sports) 5, no. 1 (January 22, 2023): 158–164. Accessed April 27, 2025. https://ejournal.unma.ac.id/index.php/respecs/article/view/4453.