FORTUNATO, VALENCIA,; ESTRELLA , Dr. Ernie V. Schools’ First Initiatives of School Head in Elevating the Quality of Teaching and Learning . Lunday: Research Journal of the Graduate School of Bulacan State University, [S. l.], v. 5, n. 1, p. 31, 2026. Disponível em: https://lunday.bulsu.edu.ph/index.php/lunday/article/view/88. Acesso em: 26 feb. 2026.