Riyadi, Sugeng, and Harjono Harjono. “Analisis Perbandingan Kecepatan Download Pada GSM”. JUITA: Jurnal Informatika 2, no. 3 (August 30, 2016). Accessed June 21, 2025. http://jurnalnasional.ump.ac.id/index.php/JUITA/article/view/725.