Angkasa, Zuber, Erfan M Kamil, Reny Kartika Sary, and Meldo Andi Jaya. 2025. “From Pesantren Towards Ecopesantren: Sustainability Index Assessment and Improvement Recommendations”. Arsir 9 (2). Indonesia:195-210. https://doi.org/10.32502/arsir.v9i2.590.