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Sirikul Vongsirisopak. 1996. Effects of water hardness and temperature on the toxicity of detergents to Puntius gonionotus Bleeker and Oreochromis niloticus (Linn.). Faculty of Graduate Studies, Mahidol University;
Sirikul Vongsirisopak. (1996) Effects of water hardness and temperature on the toxicity of detergents to Puntius gonionotus Bleeker and Oreochromis niloticus (Linn.) . Mahidol University/Bangkok.
Sirikul Vongsirisopak. Effects of water hardness and temperature on the toxicity of detergents to Puntius gonionotus Bleeker and Oreochromis niloticus (Linn.). . Bangkok:Mahidol University, 1996.
Sirikul Vongsirisopak. (1996) Effects of water hardness and temperature on the toxicity of detergents to Puntius gonionotus Bleeker and Oreochromis niloticus (Linn.) . Mahidol University/Bangkok.