J. M. F. Obando, “The Ethical Standard and Work Values of Senior High School Teachers in Libertad National High School, Surallah, South Cotabato”, IJRIS, vol. 3, no. 8, pp. 20–39, Aug. 2025, Accessed: Mar. 16, 2026. [Online]. Available: https://www.journal.ijris.com/index.php/ijris/article/view/205