Informe del Programa de Frijol para la Zona Andina: taller de planificacion de la segunda fase. Cali, Colombia, julio 30 a agosto 3, 1990.
Seminar on Horizontal Resistance to the Blast Disease of Rice (1971, Palmira, Valle del Cauca, Colombia). Papers presented
Seminario programa Pastos Tropicales: establecimiento de pastos bajo diferentes tipos de labranza en suelos de baja estabilidad estructural
New avenues in impact assessment of participatory research and gender analysis: Summary proceedings of the impact assessment workshop CIMMYT Headquarters, Texcoco, Mexico October 19-21, 2005
Moving from emergency seed aid to seed security: linking relief with development: proceedings, Oslo May 14th 2008
Expert consultation on market information systems and agricultural commodities exchange: strengthening market signals and institutions: Proceedings of an expert meeting held in Amsterdam, The Netherlands, 28-30 November 2005
Cassava research and development in Asia: exploring new opportunities for an ancient crop: Proceedings of the seventh regional workshop held in Bangkok, Thailand, Oct 28-Nov 1, 2002
Workshop on Effective and Sustainable Seed Relief Activities (2003, Rome). Towards effective and sustainable seed relief activities : Report
Integrated natural resource management in practice: enabling communities to improve mountain livelihoods and landscapes: Proceedings of the African highlands initiative conference, 12-15 October, 2004, Nairobi, Kenya