94. International journal of health promotion and education. Manchester, UK : Institute of Health Education SW503
95. Group dynamics: theory, research, and practice Washington, D.C. : Educational Pub. Foundation, ©1997- SW321
99. Journal of psycholinguistic research. [New York, N.Y.] : Kluwer Academic/Plenum Publishers ENG320
100. Professional psychology. [Washington, DC] : American Psychological Association, [1969]-©1982. CP522