Note on the Use of Visual Aids in Kenya
OVAC Bulletin (London), issue 1 (1960), ?? pp.
"Report of an experiment based on the use of audio-visual techniques in the medical field." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 1043, topic code 522)
