Production of Methyl ester from Coconut Oil using Heterogeneous K/γ-Al2O3 under Microwave Irradiation. JCPE [Internet]. 2020 Nov. 30 [cited 2025 Aug. 28];5(2):23-9. Available from: https://jurnal.fti.umi.ac.id/index.php/JCPE/article/view/861