Performance Evaluation of Esters Extracted from Waste Cooking Palm Oil on the Rheology, Filtration and Mud Cake Properties of Water Based Drilling Mud. Malaysian J. Sci. Adv. Tech. [Internet]. 2026 Mar. 25 [cited 2026 Jun. 3];1(1):1-7. Available from: https://mjsat.com.my/index.php/mjsat/article/view/730