AMIRUL, Fhainalyn B. Teaching Filipino Using Spiral Progression Scheme and the Implication to Student’s Performance in MSU-Sulu Laboratory High School. International Journal of Research in Engineering, Science and Management, [S. l.], v. 4, n. 8, p. 234–238, 2021. Disponível em: https://journal.ijresm.com/index.php/ijresm/article/view/1232. Acesso em: 30 oct. 2025.