Putra, A. Z. ., R. W. Pinem, S. Silalahi, F. . Gulo, and J. A. A. . Liukhoto. “Classification of Covid-19 Patient Spread Rate By Age and Region With K-Means Algorithm”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 6, no. 3, Aug. 2022, pp. 1085-9, doi:10.33395/sinkron.v7i3.11603.