Puttachad chanmuang และ Muenduen Phisalaphong. (2010) Ethyl ester production using immobilized lipase entrapped in loofa reinforced alginate carriers. Chulalongkorn University:ม.ป.ท.Puttachad chanmuang และ Muenduen Phisalaphong. 2010. Ethyl ester production using immobilized lipase entrapped in loofa reinforced alginate carriers. ม.ป.ท.:Chulalongkorn University;Puttachad chanmuang และ Muenduen Phisalaphong. Ethyl ester production using immobilized lipase entrapped in loofa reinforced alginate carriers. ม.ป.ท.:Chulalongkorn University, 2010. Print.