A S Abdul Rahman, Mohamed Ahmed Hafez, N Sidek, A M Murozi. “The Effect of Plastic Waste As Soil Stabilizer”. Mathematical Statistician and Engineering Applications 71, no. 4 (December 28, 2022): 7239–7254. Accessed October 4, 2025. https://philstat.org/index.php/MSEA/article/view/1341.