1988
“Innovation, Technical Assistance, And Development: The Importance Of Technology Users”. World Development 16 (6): 711-721. doi:10.1016/0305-750X(88)90177-5. http://www.sciencedirect.com/science/article/pii/0305750X88901775.
. 1988. 1987
1980
“Species And Part Of Tree Collected”. The Socio-Economic Context Of Fuelwood Use In Small Rural Communities. Washington, DC: Bureau for Program and Policy Coordination, U.S. Agency for International Development (USAID). https://babel.hathitrust.org/cgi/pt?id=mdp.39015064769352.
. 1980.