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. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), [S. l.], v. 4, n. 11, p. 667–672, 2025. DOI: 10.54443/ijset.v4i12.1527. Disponível em: https://ijset.org/index.php/ijset/article/view/1527. Acesso em: 2 apr. 2026.