Gao L, Shang Q, Zhou J, Xiao G, Wei R. Esterification of Oleic Acid in Biodiesel Synthesis with SO42-/ZrO2/MCM-41 as Catalyst. ajc [Internet]. 2013 Jun. 17 [cited 2024 Nov. 25];25(12):6579-83. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_13_21