1. Sukhatme, P.V. and Pause, V.G. (1951). Crop surveys in India - II. Journal of Indian Society of Agricultural Statistics 2. 95–168.
2. Singh, R., Goyal, R.C. Saha, S.K. and Chhikara, R.S. (1992). Use of Satellite Spectral data in Crop Yield Estimation Surveys. Int. J. Remote Sensing, Vol.13.No.14, 2583–2592.
3. Singh Randhir and Goyal, R.C. (1993). Use of remote sensing technology in crop yield estimation surveys. Project Report, IASRI, New Delhi.
4. Singh R, Semwal Dinesh P., Rai, Anil and Chhikara, Raj S. (2000). small area estimation of crop yield using remote sensing satellite data. Accepted for publication) International Journal of Remote Sensing.
5. Agarwal, R., Jain, R.C. and Mehta, S.C., (2001). Yield forecast based on weather variable and agricultural inputs on agro-climatic zone basis. Ind. J. Agric. Sci., 71(7), 487–490.