Panga, Kenneth, Cherrynel P. Bohayo, Erica Oquialda, Margie K. Tabayag, and Jan Blademir Bradecina. 2025. “The Influence of Principal Leadership on School Improvement in a Philippine Public Secondary School: A Qualitative Study”. Journal of Mathematics Instruction, Social Research and Opinion 4 (4). Bandung, Indonesia:1013-24. https://doi.org/10.58421/misro.v4i4.526.