CALVADORES, C. B. . A Standardized Achievement Test in Mathematics for Grade 8 Students in the Schools Division of Eastern Samar. European Journal of Life Safety and Stability (2660-9630), [S. l.], v. 15, p. 15-20, 2022. Disponível em: http://www.ejlss.indexedresearch.org/index.php/ejlss/article/view/482. Acesso em: 17 aug. 2025.