MOH. RIZAL BAHRI; ELLYA NURFARIDA; HERWIN ZAKIYAH. Pembelajaran Chord Gitar Berbasis Android. Jurnal Informatika dan Multimedia, Malang, Indonesia, v. 7, n. 1, 2015. DOI: 10.33795/jim.v7i1.1170. Disponível em: http://114.6.41.75/index.php/jtim/article/view/1170. Acesso em: 11 sep. 2025.