Pratamaningsih, M. M., Hati, D. P., Erwinda, E., Muslim, R. Q., Hikmat, M., & Purwanto, S. (2023). Soil Characteristics and Management of Ultisols Derived from Claystones of Sumatra. JOURNAL OF TROPICAL SOILS, 29(3), 115–125. https://doi.org/10.5400/jts.2024.v29i3.115-125