Mangal, S. K. (2002). Statistics in psychology and education (Second edition.). Prentice-Hall of India Private Ltd..
Chicago-referens (17:e uppl.)Mangal, S. K. Statistics in Psychology and Education. Second edition. New Delhi: Prentice-Hall of India Private Ltd., 2002.
MLA-referens (8:e uppl.)Mangal, S. K. Statistics in Psychology and Education. Second edition. Prentice-Hall of India Private Ltd., 2002.
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