Maretno, Maretno, and Arisman Arisman. “LADDER DRILL DALAM MENINGKATKAN KELINCAHAN ATLET BOLA VOLI”. JURNAL MUARA OLAHRAGA 3, no. 1 (December 25, 2020): 46–55. Accessed February 4, 2025. https://ejournal.ummuba.ac.id/index.php/pjkr/article/view/455.