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Pande, S and Maji, A K and Johansen, C and Bantilan, F T, eds. (2000) GIS Application in Cropping System Analysis - Case Studies in Asia: Proceedings of the International Workshop on Harmonization of Databases for GIS Analysis of Cropping Systems in the Asia Region 18-29 August 1997, ICRISAT, Patancheru, India. International Crops Research Institute for the Semi-Arid Tropics. ISBN 9290664231