1. Bain, J.S., 1959. Industrial Organization. Wiley, New York.
2. Bruce, J., 1993. A Review of Tenure Terminology. Land Tenure Center, University of Wisconsin-Madison.
3. Bruce, J., Migot-Adholla, S.E. (Eds.), 1994. Searching for Land Tenure Security in Africa. Kendall/Hunt Publishing Company, Dubuque, Iowa.
4. Trees on farms in Malawi: private investment, public policy, and farmer choice;Dewees;World Dev.,1995
5. Dommen, A.J., 1994. Land tenure and agricultural production: a market oriented approach to analyzing their interactions. United States Department of Agriculture, Economic Research Service, Agriculture and Trade Division, Staff Report, Number AGES-9416.