Azman, Noorul Hidayah. “Preschool Teachers’ Self-Efficacy in the Teaching of English As a Second Language: Validity and Reliability of Questionnaire”. International Journal of Psychosocial Rehabilitation 24, no. 6 (June 30, 2020): 2472–2481. Accessed July 7, 2025. https://psychosocial.com/index.php/ijpr/article/view/6716.