Journal, Baghdad Science. 2010. "Design and Implementation for Optical Fiber Communication System Using Frequency Shift Coding: Samar Y.Al-Dabagh | Hani J.Kbashi". مجلة بغداد للعلوم 7 (3). Iraq, Baghdad:1226-31. https://doi.org/10.21123/bsj.2010.7.3.1226-1231.