Christopher Ogwugwuam Ezeagwu (2020) “Improving Fibre Optics Transmission with Wave Length Division Multiplex through Routed-Switching Network”, International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE, 6(8), pp. 50–55. doi: 10.31695/IJASRE.2020.33848.