Uula, Mimma Maripatul, and Solihah Sari Rahayu. “The Efficiency of Pesantren Cooperative Using Data Envelopment Analysis (DEA): A Case in Indonesia”. The Economic Review of Pesantren 1, no. 1 (November 29, 2022). Accessed October 10, 2025. https://journals.smartinsight.id/index.php/ERP/article/view/198.