Dallong, Chona Myrth. “Teacher Motivation and Professional Identity Within the Expanded Career Progression (ECP) System: A Case Study in a Philippine Public School”. International Journal of Sustainability and Advanced Integrated Research 2, no. 2 (June 12, 2026): 3487–3494. Accessed October 18, 2026. https://serverojs1-ijsair.sharkcluster.com/index.php/ijsair/article/view/707.