(1) Ministry of Agriculture, Government of India, 2009, Economic survey 2014-15.
(2) C.H. Hanumantha rao (1975), Technological change and Distribution of gains in Indian Agriculture, p.121,178.
(3) V.K.R.V. Rao (1974), “New Challenges before Indian Agriculture”, Panse Memorial Lecture.
(4) Uma Srivastawa, Robert W. Crowmm and Earl O. Heady,1), “ Green Revolution and Fram Income Distribution”, Economic and Political Weekly.