Hairol Jefri HIA, Mohd Shohaimi NA, Ibrahim SF, Mohd Shukri N, Eleburuike NA. Transesterification of Waste Cooking Oil Utilizing Potassium Doped Empty Fruit Bunches Ash Heterogeneous Catalyst. J. Adv. Res. Fluid Mech. Therm. Sc. [Internet]. 2025 Feb. 20 [cited 2025 Apr. 2];127(2):133-47. Available from: https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/14141