Darnila, E., Hafiz Al-Kautsar, and Yaumil Iksan. “Analysis of Patient Disease Trends Based on Medical Record Data Using the C4.5 Algorithm ”. Login : Jurnal Teknologi Komputer, Vol. 14, no. 1, June 2020, pp. 7-12, http://login.seaninstitute.org/index.php/Login/article/view/11.