SIMARANGKIR, Aprinaldi Patiaraja. Changes on Structures of Music Presentation in Traditional Ceremony of Toba Batak Communities. International Journal of English Literature and Social Sciences (IJELS), [S. l.], v. 4, n. 1, 2019. Disponível em: https://journal-repository.com/index.php/ijels/article/view/460.. Acesso em: 1 may. 2025.