Harahap, S. Z., M. H. Munandar, Masrizal, I. R. Munthe, and M. P. P. Siregar. “Implementation of C4.5 Agorithm in Predicting the Timeliness of Student Graduation (Case Study: Informatics Management Study Program, Labuhanbatu University)”. Jurnal Mantik, vol. 4, no. 3, Nov. 2020, pp. 2041-8, doi:10.35335/mantik.Vol4.2020.1064.pp2041-2048.