1. Land theory: theory and policy issues in Ethiopia;Aredo,1995
2. From protecting natural heritage to managing sustainable development;Arrarte,1999
3. Property Rights in a Poor Country: Tenure Insecurity and Investment in Ethiopia;Ayalew,2005
4. Environment and Economy: Property Rights and Public Policy;Bromley,1991
5. Collaboration for identity, equity, and sustainability;Chenier,1999