Tsetsegmaa, T., Darjaa, T. and Dorj, D. 2011. Determination of Arsenic in Tuul River and in Drinking Water, using HG-AAS with Electrically Heated Atomizer. Proceedings of the Mongolian Academy of Sciences. 49, 4 (Mar. 2011), 78–85. DOI:https://doi.org/10.5564/pmas.v0i4.50.