Chang, Jing, and Marilou Saong. “Teacher Competency Challenges in Resource-Constrained Rural Schools: Professional Development Needs in Communities With Left-Behind Children”. International Journal of Learning, Teaching and Educational Research 25, no. 7 (July 30, 2026): 736–757. Accessed August 19, 2026. https://www.ijlter.net/index.php/ijlter/article/view/2972.