1. On measuring the environmental impact of agricultural trade liberalization;Anderson,1996
2. Palanpur, The Economy of an Indian Village;Bliss,1982
3. Substitution and complementarity between inputs in Paddy cultivation;Chopra;Journal of Quantitative Economics,1985
4. Applied Econometrics;Desai,1976
5. Fertilizer Association of India (various), Fertilizer Statistics 2002.