“Tingkat Kepuasan Peserta Ekstrakurikuler Bola Voli Di SMP Terhadap Kualitas Pelatih Dan Program Latihan”. Journal of Physical Activity (JPA) 4, no. 1 (September 28, 2025): 23–31. Accessed October 2, 2025. https://journal.apopi.org/index.php/jpa/article/view/115.