Abd Wahab, H., Zafiah Mohd Rus, A., & Taufiq Zaliran, M. (2018). Design of Experiment for In-Situ Synthesis of Waste Vegetable Oils and Synthetic Based Polyurethane (PU) Foam Composites. International Journal of Engineering & Technology, 7(4.34), 413-416. https://doi.org/10.14419/ijet.v7i4.34.26898