Issara Sramala. (1999) Proline scanning mutagenesis of selected helices of the Bacillus thuringiensis Cry 48 toxin. Mahidol University,:ม.ป.ท.Issara Sramala. 1999. Proline scanning mutagenesis of selected helices of the Bacillus thuringiensis Cry 48 toxin. ม.ป.ท.:Mahidol University,;Issara Sramala. Proline scanning mutagenesis of selected helices of the Bacillus thuringiensis Cry 48 toxin. ม.ป.ท.:Mahidol University, 1999. Print.