[1]
E. Hafiza Ibrahim, N. Ahmad Tajuddin, and N. Hamzah, “Synthesis and Characterization of Alkali Free Mg-Al Layered Double Hydroxide for Transesterification of Waste Cooking Oil to Biodiesel: Effect of Mg/Al Ratio”, IJET, vol. 7, no. 4.14, pp. 154–157, Dec. 2019, doi: 10.14419/ijet.v7i4.14.27518.