Abba, Hadi A., Lawal Sani, Mahmoud Hijab Abubakar, and Zawawi Daud. “Novel Admixture for Improvement of Foundations on Tropical Expansive Soils”. International Journal of Integrated Engineering 9, no. 1 (September 20, 2017). Accessed September 10, 2024. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/1551.