Worku, Zeleke Bekele, and Reginald Legoabe. “Factors That Undermine Service Delivery by Civil Engineers in South African Local Municipalities”. Civil Engineering Journal 3, no. 12 (January 4, 2018): 1254–1265. Accessed June 27, 2025. https://www.civilejournal.org/index.php/cej/article/view/565.