- Allen, O.N. (1959). Experiments in Soil Bacteriology. 3rd Edition. Burgess Publishing Co., p 117.
- Asea, P.E.A., Kucey, R.M.N. and Stewart, J.W.B. (1988). Inorganic phosphate solubilization by two Penicillium species in solution culture and soil. Soil Bio. Biochem. 20 : 459-464.
- Azcon-Aguilar, C. and Barea, J.M. (1978). Effects of interactions between different culture fractions of ‘Phosphobacteria’ and Rhizobium on mycorrhizal infection, growth and nodulation of Medicago sativa. Can. J. Microbiol. 24: 250-254.
- Dodd, J. C., Burton, C.C., Burns, R.G. and Jeffries, P. (1987).Phosphatase activity associated with the roots and the rhizosphere of plants infected with vesicular-arbuscular mucorrhizal fungi. New Phytology 107: 163-172.
- Gupta, P.K. (2000). Soil, Plant, Water and Fertilizer Analysis, Agrobios (India), Jodhpur, 438p.
- Harley, J.L. (1969). The Biology of Mycorrhiza, 2nd edn. Leonard Hill, London, 334p.
- Lindsay, W.L. and Norvell, W. A. (1978). Development of a DTPA soil test for zinc, iron, manganese and copper.Soil Sci. Soc. Amer. J. 42: 421-428.
- Panse, V.G. and Sukhatme, P.V. (2000). Statistical Methods for Agricultural Workers. ICAR, New Delhi, 359p.
- Reid, R.K., Reid, C.P.P. and Szaniszol, P.J. (1985).Effects of synthetic and micobially produced chelatyes on the diffusion of boron and phosphorus to a stimulated root in soil. Bio. Fert. Soils 1: 45-52.
- Strzelczyk, E., Pokojska, A., Kampert, M., Michalski, L. and Kowalski, S. (1989). Production of plant growth regulators by non-mycorrhizal fungi associated with the roots of forest trees. In: Interrelationship Between Microorganisms and Plants in soil (Ed. Vancura, V. and Kunc F.) Elservier, Amsterdam, p 213-222.
- Tarafdar, J.C., Rao, A.V. and Bala, K. (1988). Production of phosphatases by fungi isolated from desert soils. Folia Microbiology 33:453-457.
- Tarafdar. J.C. and Rao, A.V. (1996). Contribution of Aspergillus strains in acquisition of phosphorous to wheat (Triticum aestivum L.) and chick pea (Cicer arietinum L.) grown in a loamy sand soil. Applied Soil Ecology 3: 109-114.
- Tarafdar, J.C., Rao, A.V. and Kumar, P. (1992). Effect of different phosphatase producing fungi on growth and nutrition of mung beans [Vigna radiata (L.) Wilczek ] in an arid soil. Biol. Fert. Soils 13 : 35-38.
- Tarafdar, J.C., Rao, A.V. and Kumar, P. (1995). Role of phosphate producing fungi on the growth and nutrition of clusterbean [Cyamopsis tetragonoloba (L.) Taub.]. J. Arid Environ. 29: 331-337.
- Venkateswarlu, B., Rao, A.V. and Raina, P. (1984). Evaluation of phosphorous solubilization by microorganisms isolated from arid soils. J. Indian Soc. Soil Sci. 32: 273-277.
- Yadav, B.K and Tarafdar, J. C. (2010). Studies on phosphastase activity and clusterbean production as influenced by the P mobilizing organism Emericella rugulosa. Legume Res. 33: 114-118.
- Yadav, B.K and Tarafdar, J.C. (2011). Penicillium purpurogenum, unique P mobilizers in arid agro-ecosystems. Arid Land Res. Manag. 25 : 87-99.