Bharose, Ram, 		Thomas, T, 		Singh, Sudhir, 		Bairwa, Jagdish, AND 		Singh, Dharmveer.
" Effect of Sulphur and Farm Yard Manure on physical and chemical properties of Sunflower grown soil and nutrient uptake by crop" <em>Bulletin of Environmental and Scientific Research</em> [Online], Volume 3 Number 1 (24 March 2013)