Diyanti, A.R., Utama, M.Z. and Ernita, M. 2020. The Effectiveness of Phosphate Solubilizing Rhizobacteria on The Growth and Yield of Several Soybean Varieties on Ultisol Soils. Akta Agrosia. 23, 2 (Dec. 2020), 77–82. DOI:https://doi.org/10.31186/aa.23.2.77-82.