Souchie, Edson Luiz, and Antonio Carlos de Souza Abboud. “Phosphate Solubilization by Microorganisms from the Rhizosphere of Pigeonpea Genotypes Grown in Different Soil”. Semina: Ciências Agrárias, vol. 28, no. 1, June 2007, pp. 11-18, doi:10.5433/1679-0359.2007v28n1p11.