R. Ananda and Achmad Zaki Yamani, “Determination of Initial K-means Centroid in the Process of Clustering Data Evaluation of Teaching Lecturers: Penentuan Centroid Awal K-means pada Proses Clustering Data Evaluasi Pengajaran Dosen”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 4, no. 3, pp. 544–550, Jun. 2020, doi: 10.29207/resti.v4i3.1896.