Somboon Kaewsawangsap. (1995) Acute toxicity, bioaccumulation and effects of lead on the histology of snails, Filopaludina (Siamopaludina) m.martensi (Frauemeldt). Mahidol University,:ม.ป.ท.Somboon Kaewsawangsap. 1995. Acute toxicity, bioaccumulation and effects of lead on the histology of snails, Filopaludina (Siamopaludina) m.martensi (Frauemeldt). ม.ป.ท.:Mahidol University,;Somboon Kaewsawangsap. Acute toxicity, bioaccumulation and effects of lead on the histology of snails, Filopaludina (Siamopaludina) m.martensi (Frauemeldt). ม.ป.ท.:Mahidol University, 1995. Print.