1. Computer modelling for practical irrigation scheduling in Punjab of Pakistan;Ahmad;Pak. J. Agric. Res.,1981
2. Annual Publication of Ministry of Food and Agriculture;Agriculture Statistics,1986
3. Review of watercourse loss measurements in Pakistan;Ashraf,1977
4. Yield-response to water;Doorenbos,1979
5. Groundwater contamination by fertilizer nitrogen;Duke;J. Irrig. Drain. Div. ASCE,1978