“EFL Teacher Self and Collective Efficacy Scale (ETSCE): Developing Efficacy Measures in Teaching EFL”. Englisia : Journal of Language, Education, and Humanities 11, no. 2 (April 30, 2024): 161–180. Accessed July 4, 2025. https://jurnal.ar-raniry.ac.id/index.php/englisia/article/view/22232.