Mustofa, Hisbulloh Als, Gunawan Gunawan, and Kosim Kosim. “Validity of Documentary Video Learning Media Based on Local Content Traditional Musical Instruments on Sound Waves”. Jurnal Pijar Mipa 16, no. 5 (November 11, 2021): 576–582. Accessed November 24, 2024. http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/1189.