Byambasuren T, Khuukhenkhuu B, Ochirbat G, Tsedenbaljir D. Temporal variation of the pseudo total content of heavy metals in Ulaanbaatar soil. Proc. Mong. Acad. Sci. [Internet]. 2019 Dec. 31 [cited 2024 Apr. 25];59(3):21-8. Available from: https://www.mongoliajol.info/index.php/PMAS/article/view/1243