Buyan, Chuluun, and Bayartsengel Bayarjargal. “Possibility of Reducing Water Hardness With Biochar Derived from Waste Biomass”. Bulletin of the Institute of Chemistry and Chemical Technology 10, no. 10 (December 28, 2022): 65–74. Accessed December 23, 2025. https://test.mongoliajol.info/BICCT/article/view/2596.