Abd Wahab, H., Zafiah Mohd Rus, A. and 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), pp. 413–416. doi:10.14419/ijet.v7i4.34.26898.