Rana และ Prabina. (1992) Protoplast regeneration and transformation system of thermophilic fungus cephalosporium eichhorniae. Mahidol University,:ม.ป.ท.Rana และ Prabina. 1992. Protoplast regeneration and transformation system of thermophilic fungus cephalosporium eichhorniae. ม.ป.ท.:Mahidol University,;Rana และ Prabina. Protoplast regeneration and transformation system of thermophilic fungus cephalosporium eichhorniae. ม.ป.ท.:Mahidol University, 1992. Print.