Dadzie, Donald Kwabena, and A. K. Kaliluthin. “Implications of Palm Kernel Shell-Filled Plastic Bottles on the Structural Behavior of Concrete Slab”. Civil Engineering Journal 9, no. 3 (March 1, 2023): 731–751. Accessed June 27, 2025. https://www.civilejournal.org/index.php/cej/article/view/3835.