Watcharat Ngamsa-ard. 2008. Production of methyl esters from palm oil with high content of free fatty acids. Faculty of Engineering, Chulalongkorn University;
Watcharat Ngamsa-ard. (2008) Production of methyl esters from palm oil with high content of free fatty acids . Chulalongkorn University/Bangkok.
Watcharat Ngamsa-ard. Production of methyl esters from palm oil with high content of free fatty acids. . Bangkok:Chulalongkorn University, 2008.
Watcharat Ngamsa-ard. (2008) Production of methyl esters from palm oil with high content of free fatty acids . Chulalongkorn University/Bangkok.