Ch, Sonomdagva, Chultem Ch, and Byambatseren Ch. “Assessment of Heavy Metal Pollution of Topsoil in Settlement Area, Darkhan City”. Proceedings of the Mongolian Academy of Sciences 58, no. 1 (April 20, 2018): 55–65. Accessed October 27, 2025. https://test.mongoliajol.info/PMAS/article/view/972.