Prihastuti, . and Sudaryono, . 2013. Soil Chemical and Biological Characteristics for Diagnostic the Potency of Acid Dry Land for Soybean Extensification. JOURNAL OF TROPICAL SOILS. 18, 1 (Mar. 2013), 17–24. DOI:https://doi.org/10.5400/jts.2013.v18i1.17-24.