SIREGAR, N.; SUTOPO, H.; PAAT, M. Mobile Multimedia-based Batakologi Learning Model Development. Journal of Mobile Multimedia, [S. l.], v. 15, n. 4, p. 271–288, 2020. DOI: 10.13052/jmm1550-4646.1541. Disponível em: https://journals.riverpublishers.com/index.php/JMM/article/view/766. Acesso em: 3 jun. 2026.