SITORUS, M., C. A. .DC., and C. LARASATI. “PENERAPAN ALGORITMA K-MEANS PADA CLUSTERING VAKSINASI COVID-19 DAERAH JAWA TIMUR”. JURNAL TEKNOSAINS KODEPENA, Vol. 3, no. 1, Aug. 2022, pp. 22-30, http://jtk.kodepena.org/index.php/jtk/article/view/46.