Putri, Erni Puspanantasari, and Almaceley S Plando. “Performance Evaluation Using Input-Oriented DEA Envelopment Model: A Case Study of Warehousing, Expedition, and Courier Companies in Indonesia”. Heuristic 22, no. 1 (July 10, 2025): 89–102. Accessed April 21, 2026. https://jurnal.untag-sby.ac.id/index.php/HEURISTIC/article/view/131963.