Nafhan Khairuddin Fathin, Rudi Kurniawan, and Saeful Anwar. “Optimizing Grocery Sales Data Grouping Using the Fuzzy C-Means Algorithm: Case Study of Nafhan Mart Store”. Journal of Artificial Intelligence and Engineering Applications (JAIEA) 4, no. 2 (February 15, 2025): 1161–1168. Accessed May 2, 2026. https://ioinformatic.org/index.php/JAIEA/article/view/842.