Najjapak Sooksawat และ Maleeya Kruatrachue. (2013) Toxicity , bioaccumulation and biosorption of lead, cadmium and zinc in charophytes. Mahidol University:ม.ป.ท.Najjapak Sooksawat และ Maleeya Kruatrachue. 2013. Toxicity , bioaccumulation and biosorption of lead, cadmium and zinc in charophytes. ม.ป.ท.:Mahidol University;Najjapak Sooksawat และ Maleeya Kruatrachue. Toxicity , bioaccumulation and biosorption of lead, cadmium and zinc in charophytes. ม.ป.ท.:Mahidol University, 2013. Print.