"The expansion of public opinion research in Africa — The public concerned — The communication media — The inexpensive media available — What interests the public — The psychological process — The language — Public opinion — Research into attitudes — Technical difficulties — Interpretation of the results — Questions — Tools — Survey of techniques. This is a revised version of a paper presented at the annual conference on the World Association for Public Opinion Research, held in Asia for the first time in Bangkok, Thailand, December 2-3, 1963." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 2167, topic code 030)