Anwar, E. K., Nurlaily, R., Sarmah, ., & Purwani, J. (2014). Land Suitability Study in Ultisols for Soybean Based on Soil Fauna. JOURNAL OF TROPICAL SOILS, 18(3), 231–239. https://doi.org/10.5400/jts.2013.v18i3.231-239