Zulherman, D., Fahmi, F., Utami, S., Santoso, T. H. and Nugroho, S. A. (2018) “Comparative Analysis of Erbium Doped Fiber Amplifier (EDFA) and Raman Optical Amplifier (ROA) in Nonlinear-CWDM System”, JURNAL INFOTEL, 10(3), pp. 144-148. doi: 10.20895/infotel.v10i3.378.