Alijandrina Tan Jalilul. “Teachers’ Instructional Competence and Attitude Toward Flexible Learning in the Midst of the Covid-19 Pandemic Among Higher Education Institutions (HEIS) in Sulu”. International Journal of Special Education 41, no. 12s (July 16, 2026): 1447–1480. Accessed September 22, 2026. https://internationalsped.com/index.php/ijse/article/view/4372.