Tandi Kadang, Tiara, Andi Nurhasanah, Angga Kusumah, Feti Fahmimroah. ENHANCING SERVICE EFFICIENCY THROUGH AN EXCEL MACRO- BASED INFORMATION SYSTEM: EVIDENCE FROM SANKEN SAMARINDA SERVICE CENTER. IJSET [Internet]. 2025 Dec. 25 [cited 2026 Apr. 2];4(11):667-72. Available from: https://ijset.org/index.php/ijset/article/view/1527