Worapon Kiatkittipong และ Silpakorn University. (2012) Second generation of biodiesel production from potential energy sources in Thailand. Silpakorn University:ม.ป.ท.Worapon Kiatkittipong และ Silpakorn University. 2012. Second generation of biodiesel production from potential energy sources in Thailand. ม.ป.ท.:Silpakorn University;Worapon Kiatkittipong และ Silpakorn University. Second generation of biodiesel production from potential energy sources in Thailand. ม.ป.ท.:Silpakorn University, 2012. Print.