CALLANTA, Alia Adrienne A.; CUBILLAS, Ariel U.; ENGENTE, Lemgen O.; LIONES, Renalyn L. DEVELOPMENT AND VALIDATION OF OUTCOME-BASED INSTRUCTIONALMATERIALS (OBIMs) IN MATHEMATICS 2. International Journal of English and Education, [S. l.], v. 8, n. 2, p. 240–250, 2019. Disponível em: https://ijee.org/ijee/article/view/501. Acesso em: 5 oct. 2026.