Sudaryono, ., Prihastuti, ., & Wijanarko, A. (2013). Land Suitability for Developing Soybean Crops in Bumi Nabung and Rumbia Districts, Central Lampung. JOURNAL OF TROPICAL SOILS, 16(1), 85–92. https://doi.org/10.5400/jts.2011.v16i1.85-92