Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C17058
Notes:
Pages 183-196 in Jan Servaes, Thomas L. Jacobson and Shirley A White (eds.), Participatory communication for social change. Sage Publications, New Delhi. 286 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C14108
Notes:
First published in Africa Media Review, 1(2), 1987., Chapter 5 in Charles Okigbo (ed.), Development Communication Principles. African Council for Communication Education, Nairobi, Kenya. 365 pages.