SINGH ARUNKUMAR. (1986). TESTS MEASUREMENTS AND RESEARCH METHODS IN BEHAVIOURAL SCIENCES. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Chicago-referens (17:e uppl.)SINGH ARUNKUMAR. TESTS MEASUREMENTS AND RESEARCH METHODS IN BEHAVIOURAL SCIENCES. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1986.
MLA-referens (9:e uppl.)SINGH ARUNKUMAR. TESTS MEASUREMENTS AND RESEARCH METHODS IN BEHAVIOURAL SCIENCES. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1986.
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