Hoang, N.K. et al. 2023. Potential solution in sustainable agriculture: improving the pH and pH buffering capacity of gray soil Acrisol from Cu Chi, Ho Chi Minh City, Vietnam using biochar combined with bentonite. SAINS TANAH - Journal of Soil Science and Agroclimatology. 20, 1 (Jun. 2023), 87–93. DOI:https://doi.org/10.20961/stjssa.v20i1.63685.