Journal, B. S. (2010) "Design and Implementation for optical fiber communication system using frequency shift coding: Samar Y.Al-Dabagh | Hani J.Kbashi", مجلة بغداد للعلوم. Iraq, Baghdad, 7(3), ص 1226-1231. doi: 10.21123/bsj.2010.7.3.1226-1231.