Nurani, et al. “Instructional Supervision, Teacher Self-Efficacy, and the Strengthening of Teacher Competence on Islamic Education: A Literature Review”. Istawa : Jurnal Pendidikan Islam, vol. 10, no. 2, Dec. 2025, pp. 135-50, https://journal.umpo.ac.id/index.php/istawa/article/view/13052.