Kabir, S., A. M.K, S. Khatun, and M. M.A. “Average Packet Transfer Delay Performance of an Enhanced CSMA/CD Based Single Channel Fast Ethernet Optical LAN”. Malaysian Journal of Science, vol. 26, no. 2, Aug. 2007, pp. 117-26, https://juku.um.edu.my/index.php/MJS/article/view/8076.