1.
Tsagaan B, Ganbaatar O, Otgonbayar A. Results of the study of pH and organic matter in the surface soil of Ulaanbaatar. Proc. Mong. Acad. Sci. [Internet]. 2021 Dec. 29 [cited 2025 Oct. 27];61(04):15-22. Available from: https://test.mongoliajol.info/PMAS/article/view/1928