Abolade, R., S. Adedokun, and G. Adepoju. “ANALYSIS ON TRAFFIC CONGESTION IN TELECOMMUNICATION USING NITEL AS CASE STUDY”. LAUTECH Journal of Engineering and Technology, Vol. 3, no. 2, Feb. 2005, pp. 65-71, https://laujet.com/index.php/laujet/article/view/203.