Yunitaningtyas, Kristiana, and Herianti Herianti. “Identifying Stratifications of Cancer Patient Visits: Approach of Clustering Using PCA of Mixed Data”. Proceedings of The International Conference on Data Science and Official Statistics 2025, no. 1 (December 22, 2025): 911–925. Accessed February 11, 2026. https://proceedings.stis.ac.id/icdsos/article/view/622.