Rizkita, Nadine, and Yudi Sukmayadi. “Application of Four-Hands Piano Virtual Learning Videos for Learning to Read Basic Level Block Notation”. Gondang: Jurnal Seni dan Budaya 6, no. 2 (December 18, 2022): 292–302. Accessed May 21, 2025. http://103.242.233.34/2012/index.php/GDG/article/view/37464.