(Visegrad Agenda 21)", Institute for Environmental Policy, Prague, 2002, 51. p.* Pender J., Place F., Ehui S. (2006) Strategies for Sustainable Land Management in the East African Highlands* Pollan M. (2007) The Omnivore's Dilemma: A Natural History of Four Meals by* Roberts W. (2008) "The No-Nonsense Guide to World Food" by Roberts W. (2008)* Africa Project 2020 An Effort to Eradicate Hunger in Africa by empowering Farmers through Sustainable Agriculture.
(Visegrad Agenda 21)", Institute for Environmental Policy, Prague, 2002, 51. p.* Pender J., Place F., Ehui S. (2006) Strategies for Sustainable Land Management in the East African Highlands* Pollan M. (2007) The Omnivore's Dilemma: A Natural History of Four Meals by* Roberts W. (2008) "The No-Nonsense Guide to World Food" by Roberts W. (2008)==External links==* Committee on Sustainability Assessment Advancing sustainability in agriculture.