Cartwright. D. (1949) 'Some Principles of Mass Persuasion'Human RelationsII3197-292
2.
Combs. Arthur (1967) In Humanizing Education - The Person in the Process (Ed. Robert Leeper)Washington: Association for Supervision and Curriculum Development, NEA (76)
3.
Derryberry, Mayhew (1960) 'Health Education - Its Objectives and Methods , Health Education Monograph No. 8
4.
Gordon, John (1965) Control of Communicable Diseases in Man. New York: The A.P.H.A. (15)
5.
Hochbaum, Godfrey (1958) 'Public Participation in Medical Screening Programs' Washington: Public Health Service Publication No' 572 (20)
6.
Kelman, Herbert (1961) 'Process of Opinion Change'Public Opinion Quarterly (Spring)
7.
Who (1959) 'Background Document Based on Summary Reports Received from Countries used at Technical Discussions on Health Education of the Public' 12th World Health Assembly (May)