Wan Busu WN, Chen RS, Shahdan D, Mohd Yusof MJ, Saad MJ, Ahmad S. Statistical Optimization Using Response Surface Methodology for Enhanced Tensile Strength of Polyethylene/Graphene Nanocomposites. IJIE. 2021;13(6):109-117. Accessed July 22, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6807