EBEN HAEZARNI TELAUMBANUA; ABDUL MUIN SIBUEA; HARUN SITOMPUL. Developing the Choir Learning Model for Teaching College Students. Elementary Education Online, [S. l.], v. 20, n. 1, p. 674–680, 2021. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/904. Acesso em: 15 jan. 2025.