Tandi Kadang, Tiara, Andi Nurhasanah, Angga Kusumah, and Feti Fahmimroah. “ENHANCING SERVICE EFFICIENCY THROUGH AN EXCEL MACRO- BASED INFORMATION SYSTEM: EVIDENCE FROM SANKEN SAMARINDA SERVICE CENTER”. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) 4, no. 11 (December 25, 2025): 667–672. Accessed April 2, 2026. https://ijset.org/index.php/ijset/article/view/1527.