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Ladda Saengduan. 1992. A comparative study of glotamine synthetase in free-living Klebsiella R15 and in Klebsiella R15 associated with rhizosphere of rice. Graduate School, Chulalongkorn University;
Ladda Saengduan. (1992) A comparative study of glotamine synthetase in free-living Klebsiella R15 and in Klebsiella R15 associated with rhizosphere of rice . Chulalongkorn University/Bangkok.
Ladda Saengduan. A comparative study of glotamine synthetase in free-living Klebsiella R15 and in Klebsiella R15 associated with rhizosphere of rice. . Bangkok:Chulalongkorn University, 1992.
Ladda Saengduan. (1992) A comparative study of glotamine synthetase in free-living Klebsiella R15 and in Klebsiella R15 associated with rhizosphere of rice . Chulalongkorn University/Bangkok.