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Manop Suphantharika. 1992. The influence of dissolved oxygen on the production of difficidin by bacillus sp. , University of London;
Manop Suphantharika. (1992) The influence of dissolved oxygen on the production of difficidin by bacillus sp. . University of London/London.
Manop Suphantharika. The influence of dissolved oxygen on the production of difficidin by bacillus sp. . London:University of London, 1992.
Manop Suphantharika. (1992) The influence of dissolved oxygen on the production of difficidin by bacillus sp. . University of London/London.