Mu’arifuddin, Moh. Ali. “Kelayakan Aspek Materi Dan Media Dalam Pengembangan Bahan Ajar Bola Voli Berbasis Kontekstual”. JOSSAE (Journal of Sport Science and Education) 3, no. 1 (April 21, 2018): 12–15. Accessed May 11, 2024. https://journal.unesa.ac.id/index.php/jossae/article/view/1972.