Africa Media Review, Volumes 3-4, African Council on Communication Education, page 75
Area Handbook for Zambia, Volume 550, Issue 75, Irving Kaplan, American University (Washington, D.C.). Foreign Area Studies
U.S. Government Printing Office, 1969, page 255
Zambia, John P. Sangwa, Article 19, Freedom of Expression Institute, Media Institute of Southern Africa, 1998, pages 10-11