HIKMATUROKHMAN, A.; PALUPI, L. S.; AMALIA, N.; DANISYA, A. R.; NUGRAHA, T. A. 4G LTE Evolved Packet Core Planning with Call Switch Fallback Technology. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 10, n. 1-6, p. 133–136, 2018. Disponível em: https://jtec.utem.edu.my/jtec/article/view/3680. Acesso em: 21 jun. 2024.