Siahaan, S. T., Suhendra, C. D. ., & Marini, L. F. . (2026). Clustering Pospay User Reviews Using Rule-Based Hybrid K-Means and TF-IDF. Sinkron : Jurnal Dan Penelitian Teknik Informatika, 10(4), 2424-2435. https://doi.org/10.33395/sinkron.v10i4.16556