Thanet Waisuwan และ Chakrit Tongurai. (2012) Continuous esterification of crude palm oil with ethanol. Songkla University:ม.ป.ท.Thanet Waisuwan และ Chakrit Tongurai. 2012. Continuous esterification of crude palm oil with ethanol. ม.ป.ท.:Songkla University;Thanet Waisuwan และ Chakrit Tongurai. Continuous esterification of crude palm oil with ethanol. ม.ป.ท.:Songkla University, 2012. Print.