UGLI, Z. J. G. A Concept of Upgrading the Content of Mother Language Education. Journal of Higher Education and Academic Advancement, [S. l.], v. 1, n. 1, p. 67–71, 2023. DOI: 10.61796/ejheaa.v1i1.40. Disponível em: https://journal.antispublisher.id/index.php/EJHEAA/article/view/40. Acesso em: 28 feb. 2026.