P. RATHORE, P. SHAH, H. CHANDOK, and S. PATEL, “THE PHOSPHATE SOLUBILIZING POTENTIAL OF CITROBACTER FREUNDII UNDER VARIOUS PHYSICOCHEMICAL CONDITIONS: Life Science-Microbiology”, Int J Life Sci Pharm Res, vol. 2, no. 4, pp. L137-L141, Dec. 2012.