Ridwan, M, and Saparuddin Siregar. “Information System Strategic Planning To Improve UINSU Medan Service Performance”. Sinkron : jurnal dan penelitian teknik informatika 8, no. 1 (January 1, 2024): 20-31. Accessed July 2, 2026. https://www.jurnal.polgan.ac.id/index.php/sinkron/article/view/13109.