Yusuf, M. “Pesantren and Environmental-Based Educational Innovation: Building Environmentally Friendly Pesantren”. Journal of Pesantren and Diniyah Studies 1, no. 2 (December 31, 2024): 116–133. Accessed April 16, 2026. https://ejournal.lppdjatim.org/index.php/jpds/article/view/24.