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, [S. l.], v. 41, n. 12s, p. 1447–1480, 2026. Disponível em: https://internationalsped.com/index.php/ijse/article/view/4372. Acesso em: 22 sep. 2026.