Surang Thamthiankul. (1999) Characterization and production of chitinase from Bacillus thuringiensis subsp. pakistani and its transformants. Mahidol University,:ม.ป.ท.Surang Thamthiankul. 1999. Characterization and production of chitinase from Bacillus thuringiensis subsp. pakistani and its transformants. ม.ป.ท.:Mahidol University,;Surang Thamthiankul. Characterization and production of chitinase from Bacillus thuringiensis subsp. pakistani and its transformants. ม.ป.ท.:Mahidol University, 1999. Print.