Githinji, Raphael Murimi, and Susan Were. 2018. “Challenges of Implementing E-Procurement in the Ministry of Transport, Infrastructure, Housing and Urban Development in Nairobi, Kenya”. Journal of Procurement & Supply Chain 2 (1):1-13. https://stratfordjournalpublishers.org/journals/index.php/journal-of-procurement-supply/article/view/114.