RAMOS, Celito A.; SANCHEZ, Rebecca S. MOTHER TONGUE FOR PRIMARY GRADES. SDSSU MULTIDISCIPLINARY RESEARCH JOURNAL, [S. l.], v. 2, n. 2, p. 23–25, 2014. DOI: 10.69546/hgx879s1. Disponível em: https://smrj.nemsu.edu.ph/index.php/SMRJ/article/view/24. Acesso em: 8 aug. 2026.