Abidin, Zainal. “Peer Tutor Learning to Improve Student Learning Outcomes in Breaststroke Swimming Lessons”. Prosiding Seminar Nasional Pendidikan Jasmani dan Kesehatan 1, no. 1 (December 2, 2021): 124-138. Accessed December 26, 2024. http://ejournal.fkip.unsri.ac.id/index.php/semnaspenjas/article/view/194.