Samosir, Tanesya Hotris. “Six-Hand Piano: Its Effectiveness As A Development for Piano Learning in Music Colleges”. Gondang: Jurnal Seni dan Budaya 8, no. 1 (June 1, 2024): 226–238. Accessed July 31, 2025. https://jurnal.unimed.ac.id/2012/index.php/GDG/article/view/57366.