Said Munzir, Nur Aulia Zannah, and Mahmudi. “nalisa eningkatan elayanan eller an ustomer ervice ank enggunakan uzzy ogic”. Limits: Journal of Mathematics and Its Applications 15, no. 2 (November 15, 2018): 141–150. ccessed December 6, 2025. https://journal.its.ac.id/index.php/limits/article/view/5362.