Thitimar Chongtaku และ Sayam Aroonsrimorakot. (2017) The application of geoinformatics for studying abundance and distribution of land snails (Cyclophorus spp. and Hemiplecta distincta) in East and Northeast of Thailand. Mahidol University:ม.ป.ท.Thitimar Chongtaku และ Sayam Aroonsrimorakot. 2017. The application of geoinformatics for studying abundance and distribution of land snails (Cyclophorus spp. and Hemiplecta distincta) in East and Northeast of Thailand. ม.ป.ท.:Mahidol University;Thitimar Chongtaku และ Sayam Aroonsrimorakot. The application of geoinformatics for studying abundance and distribution of land snails (Cyclophorus spp. and Hemiplecta distincta) in East and Northeast of Thailand. ม.ป.ท.:Mahidol University, 2017. Print.