Suwannatrai, A., Suwannatrai, K., Haruay, S., Piratae, S., Thammasiri, C., Khampoosa, P., Kulsantiwong, J., Prasopdee, S., Tarbsripair, P., Suwanwerakamtorn, R., Sukchan, S., Boonmars, T., Malone, J.B., Kearney, M.T. and Tesana, S. 2011. Effect of soil surface salt on the density and distribution of the snail Bithynia siamensis goniomphalos in northeast Thailand. Geospatial Health. 5, 2 (May 2011), 183–190. DOI:https://doi.org/10.4081/gh.2011.170.