1. Allen RG, Pereira, L S, Raes D, Smith M (1998) Crop evapotranspiration—guidelines for computing crop water requirements, FAO Irrigation and drainage paper 56. FAO, Rome
2. Bandyopadhyay J (1987) Political ecology of drought and water scarcity: need for an ecological water resources policy. Econ Polit Wkly 22(50):2159–2161, 2163–2169
3. Batty JC, Keller J (1980) Energy requirements for irrigation. In: Pimentel D (ed) Handbook of energy utilization in agriculture. CRC Press, Boca Raton, pp 35–44
4. Bhattacharjee S (2012) Pukur Kete Ki Hawbe, Jodi Tatey Jol Na Thake (Why dig, if water does not remain in the pond. Anandabazar Patrika, Kolkata edition, 24 July
5. Burkett P (2003) The value problem in ecological economics: lessons from the Physiocrats and Marx. Organ Environ 16:137–167