Niswati, A., Yusnaini, S. and Arif, M.A.S. 2008. Phosphate Solubilizing Microorganism and available P on the Rizosphere of some Ages and Distances from the Center of Maize Roots. JOURNAL OF TROPICAL SOILS. 13, 2 (May 2008), 123–130. DOI:https://doi.org/10.5400/jts.2008.v13i2.123-130.