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Rambaldi Giacomo. 1992. Small scale Irrigation in Remote Areas: An Approach to Marketing as Contribution to Successful Project Implementation. Paper presented at the Workshop on Experiences and perspectives of Horticultural Smallholder Irrigation Schemes in Kenya. Nairobi, Kenya, November 26, 1992

Alex Mugova and Jealinda Mavunga. 1999. The Wei Wei Integrated Development Project:  A Success Story In Desertification Control, Desertification Control Bulletin No. 36, 2000 UNEP- Success Stories in Desertification Control – Award 1999

_________ 1995. Wei Wei Integrated Development Project, Sigor (Kerio Valley) - Kenya, Training, Research and Consolidation Programme. Lodagri