Muzakir, Ari, and Usman Ependi. “ANALYSIS OF THE USE OF CELLULAR OPERATORS USING THE ANALYTIC HIERARCHY PROCESS METHOD”. Journal of Information Systems and Informatics 1, no. 1 (March 5, 2019): 29-38. Accessed October 13, 2025. https://journal-isi.org/index.php/isi/article/view/5.