PANGANIBAN, R. E. . The Effectiveness of Indigenous and Low – Cost- Teacher Made Science Instructional Materials in Selected Third Year Students of The Balayan National High School. Instabright International Journal of Multidisciplinary Research, [S. l.], v. 2, n. 1, p. 49–52, 2020. DOI: 10.52877/instabright.002.01.0008. Disponível em: https://instabright.online/index.php/journal/article/view/8. Acesso em: 30 aug. 2025.