THE LANGUAGE VITALITY AMONG THE DIFFERENT ETHNOLINGUISTIC GROUPS IN HIGHER EDUCATION INSTITUTIONS IN REGION XII: A MULTIPLE CASE STUDY. Proceedings of International Conference on Special Education, [S. l.], v. 6, p. 256–266, 2025. Disponível em: https://publication.seameosen.edu.my/index.php/icse/article/view/440. Acesso em: 22 jun. 2026.