Erni Puspanantasari Putri. “Performance Evaluation Using the DEA-Stepwise Modeling Approach Method: Case Study of the Export-Import Sector in Indonesia”. Journal Serambi Engineering 9, no. 1 (December 14, 2023): 7758–7767. Accessed November 29, 2025. https://jurnal.serambimekkah.ac.id/index.php/jse/article/view/740.