Eko Sigit Purwanto. “The Principal’s Leadership Strategy in Improving the Quality of Learning at MTs Darul Falah Sumbergempol Tulungagung”. International Journal of Islamic Educational Research 3, no. 2 (April 24, 2026): 01–07. Accessed May 10, 2026. https://international.aripafi.or.id/index.php/IJIER/article/view/527.