Togatorop, Merdy Roy Sunarya, Mukhlis Hasbullah, and Tri Danu Satria. “Keyboard Tunggal: Media Evolusi Dalam Musik Etnis Pakpak Di Sumatera Utara”. Gondang: Jurnal Seni dan Budaya 6, no. 1 (June 27, 2022): 196–203. Accessed May 21, 2025. http://103.242.233.34/2012/index.php/GDG/article/view/36038.