Kirwah, Kibet Joash, and Shale Noor Ismail. 2016. “Effects of E-Procurement Adoption on Preference Regulation in Kenyan State Corporations: A Case of Kenya Power and Lighting Company Limited”. The International Journal of Business & Management 4 (10). https://internationaljournalcorner.com/index.php/theijbm/article/view/127050.