Khattiya Sonsanam. 2002. Optimization of Bacillus thuringiensis subsp. Kurstaki production for biopesticide use. Field of Study Biotechnology, Mahidol University;
Khattiya Sonsanam. (2002) Optimization of Bacillus thuringiensis subsp. Kurstaki production for biopesticide use . Mahidol University/Bangkok.
Khattiya Sonsanam. Optimization of Bacillus thuringiensis subsp. Kurstaki production for biopesticide use. . Bangkok:Mahidol University, 2002.
Khattiya Sonsanam. (2002) Optimization of Bacillus thuringiensis subsp. Kurstaki production for biopesticide use . Mahidol University/Bangkok.