Kritsada Katawutpoonphan และ Orawan Satayalai. (2008) Effects of artrazine on the early development and gonad development of rice field frog Hoplobatrachus rugulosus (Wiegmann, 1834). Chulalongkorn University:ม.ป.ท.Kritsada Katawutpoonphan และ Orawan Satayalai. 2008. Effects of artrazine on the early development and gonad development of rice field frog Hoplobatrachus rugulosus (Wiegmann, 1834). ม.ป.ท.:Chulalongkorn University;Kritsada Katawutpoonphan และ Orawan Satayalai. Effects of artrazine on the early development and gonad development of rice field frog Hoplobatrachus rugulosus (Wiegmann, 1834). ม.ป.ท.:Chulalongkorn University, 2008. Print.