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Parichart Thaweeburus. (1998) Environmental impact and risk assessment for the upper Songkhla lagoon . Universitat des Saarlandes/Saarbrucken.
Parichart Thaweeburus. Environmental impact and risk assessment for the upper Songkhla lagoon. . Saarbrucken:Universitat des Saarlandes, 1998.
Parichart Thaweeburus. (1998) Environmental impact and risk assessment for the upper Songkhla lagoon . Universitat des Saarlandes/Saarbrucken.