Millah, Kunkun Syaeful. “Psychological Capital and Transformational Leadership: Insights from Islamic School Principals”. Darussalam: Journal of Psychology and Educational 4, no. 1 (August 22, 2025): 84–93. Accessed December 17, 2025. https://www.journal.minangdarussalam.or.id/index.php/djpe/article/view/311.