Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C22080
Notes:
Pages 47-54 in Charles Okigbo and Festus Eribo (eds.), Development and communication in Africa. Rowman and Littlefield Publishers, Inc., Lanham, Maryland. 249 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C21510
Notes:
Pages 205-226 in Susan L. Senecah (ed.), The Environmental Communication Yearbook. Volume 1. Lawrence Erlbaum Associates, Mahwah, New Jersey. 267 pages.