Nusram, Mursyid, and Cosmas Eko Suharyanto. “IMPLEMENTASI VOIP SERVER BERBASIS LINUX ASTERISKNOW”. Computer and Science Industrial Engineering (COMASIE) 3, no. 1 (July 23, 2020): 63–73. Accessed November 22, 2024. https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/2014.