Bahala, E. B., Onrubia, R. P., Bernal, L., Madrigal, P. M., & Adan, J. E. (2018). A COMPARATIVE STUDY ON PRIVATE AND PUBLIC HIGH SCHOOLS’ PRINCIPAL LEADERSHIP AND ITS IMPACT TO THE STUDENTS ACHIEVEMENT IN MATHEMATICS, SCIENCE AND ENGLISH SUBJECTS. PEOPLE: International Journal of Social Sciences, 4(2), 1590–1610. https://doi.org/10.20319/pijss.2018.42.15901610