Chanpen Wiwat. (1991) Characterization of conjugation-like gene transfer process in Bacillus thuringiensis subspecies israelensis. Mahidol University,:ม.ป.ท.Chanpen Wiwat. 1991. Characterization of conjugation-like gene transfer process in Bacillus thuringiensis subspecies israelensis. ม.ป.ท.:Mahidol University,;Chanpen Wiwat. Characterization of conjugation-like gene transfer process in Bacillus thuringiensis subspecies israelensis. ม.ป.ท.:Mahidol University, 1991. Print.