Nwamgbowo, Paschal, Ezekiel Nnadi, Val Hyginus Udoka Eze, and Nathan Kibwami. “Quantification of Earth Material for Sustainable Road Works in Southeast Nigeria”. Journal of Engineering, Technology, and Applied Science (JETAS) 5, no. 3 (December 26, 2023): 121-131. Accessed January 9, 2025. https://lamintang.org/journal/index.php/jetas/article/view/597.