Md. Asraful Sekh* , Mafikul Islam , Saikat Bose , Mijanur Rahim. “Performance of a 32 Channels WDM System Using Gain Flattened EDFA”. International Journal of Emerging Trends in Science and Technology, Vol. 4, no. 08, Aug. 2017, pp. 5509-17, https://ijetst.igmpublication.org/index.php/ijetst/article/view/1297.