Harris, Jaudat Iqbal, Sirajul Arifin, and Muhammad Yazid. “The Efficiency of KSPPS BMT UGT Nusantara Branches in East Java Using Data Envelopment Analysis (DEA) Period 2018-2022”. EKONOMIKA SYARIAH : Journal of Economic Studies 8, no. 1 (June 30, 2024): 49–66. Accessed October 27, 2025. https://ejournal.uinbukittinggi.ac.id/index.php/febi/article/view/8485.