Psychology research methods -
Research Methods and Statistics in Psychology
Hugh Coolican (2009)
Introduction to Research Methods in Psychology (3rd ed.)
Howitt, D., & Cramer, D. (2011)
Milgram, S. (1974). Obedience to Authority: An Experimental View. New York: Harper and Row.
See also Brown, R. (1986). Social Forces in Obedience and Rebellion. Social Psychology: The Second Edition. New York: The Free Press.