Tulaporn Treesutat และ Jirdsak Tscheikuna. (2006) Production of methyl ester from palm fatty acid and palm stearin using sulfuric acid and potassium hydroxide as catalysts. Chulalongkorn University:ม.ป.ท.Tulaporn Treesutat และ Jirdsak Tscheikuna. 2006. Production of methyl ester from palm fatty acid and palm stearin using sulfuric acid and potassium hydroxide as catalysts. ม.ป.ท.:Chulalongkorn University;Tulaporn Treesutat และ Jirdsak Tscheikuna. Production of methyl ester from palm fatty acid and palm stearin using sulfuric acid and potassium hydroxide as catalysts. ม.ป.ท.:Chulalongkorn University, 2006. Print.