Tsagaan, Byambasuren, Ochirbat Ganbaatar, and Azzayaa Otgonbayar. “Results of the Study of PH and Organic Matter in the Surface Soil of Ulaanbaatar”. Proceedings of the Mongolian Academy of Sciences 61, no. 04 (December 29, 2021): 15–22. Accessed July 27, 2024. https://mongoliajol.info/index.php/PMAS/article/view/1928.