Siriporn Hongthong. (1998) Analysis of a mathematical model for the effect of toxicant on single-species ecosystems. Mahidol University,:ม.ป.ท.Siriporn Hongthong. 1998. Analysis of a mathematical model for the effect of toxicant on single-species ecosystems. ม.ป.ท.:Mahidol University,;Siriporn Hongthong. Analysis of a mathematical model for the effect of toxicant on single-species ecosystems. ม.ป.ท.:Mahidol University, 1998. Print.