Sawvalak Rittilak และ Surachai Pornpakakul. (2008) Biodiesel production from rice bran oil soapstock using novozyme 435 catalyst. Chulalongkorn University:ม.ป.ท.Sawvalak Rittilak และ Surachai Pornpakakul. 2008. Biodiesel production from rice bran oil soapstock using novozyme 435 catalyst. ม.ป.ท.:Chulalongkorn University;Sawvalak Rittilak และ Surachai Pornpakakul. Biodiesel production from rice bran oil soapstock using novozyme 435 catalyst. ม.ป.ท.:Chulalongkorn University, 2008. Print.