Hikmaturokhman, A., Palupi, L. S., Amalia, N., Danisya, A. R. and Nugraha, T. A. (2018) “4G LTE Evolved Packet Core Planning with Call Switch Fallback Technology”, Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 10(1-6), pp. 133–136. Available at: https://jtec.utem.edu.my/jtec/article/view/3680 (Accessed: 29March2024).