Osman, Roselah, Nazirah Ramli, and Suriyati Ujang. “Students’ Preferences for Mobile Phone Service Providers Based on Fuzzy Grade Matrix and Statistical Analysis ”. Gading Journal for the Social Sciences (e-ISSN 2600-7568) 27, no. 2 (October 31, 2024): 106-118. Accessed June 17, 2026. https://www.gadingssuitm.com/index.php/gadingss/article/view/484.