Astuti, E.V. et al. 2023. Classification and Clustering of Internet Quota Sales Data Using C4.5 Algorithm and K-Means. Jurnal Ilmiah Teknik Elektro Komputer dan Informatika. 9, 2 (Apr. 2023), 268–283. DOI:https://doi.org/10.26555/jiteki.v9i2.25970.