W. Yustanti, A. Iwan Nurhidayat, and M. . Iskandar Java, “Optimizing Tuition Fee Determination with K-Means Cluster Relabeling Based on Centroid Mapping of Principal Component Pattern”, J. Inf. Syst. Eng. Bus. Intell., vol. 11, no. 3, pp. 445–458, Oct. 2025.