Ts, Dagii, Davaasuren B, Baljinnyam N, and Nadmid Ts. 2022. “X-Ray Fluorescence Analysis As a Tool of Monitoring Soil Pollution  Around The Central Geological Laboratory”. Scientific Transaction of the National University of Mongolia. Physics 20 (438):31-34. https://doi.org/10.22353/physics.v20i438.120.