Redzuan, Nor Qayrawani, et al. “ANALYSING THE LUBRICANT RHEOLOGY-PRESSURE RELATION FOR BIODIESEL DERIVED WASTE PALM COOKING OIL (WPCO)”. Journal of Transport System Engineering, vol. 10, no. 2, Nov. 2023, pp. 1-7, doi:10.11113/jtse.v10.207.