SINHA S N. (1994). RESEARCH METHODOLOGY IN BEHAVIOURAL SCIENCE. CONCEPT PUBLICATION.
Chicago-referens (17:e uppl.)SINHA S N. RESEARCH METHODOLOGY IN BEHAVIOURAL SCIENCE. NEW DELHI: CONCEPT PUBLICATION, 1994.
MLA-referens (9:e uppl.)SINHA S N. RESEARCH METHODOLOGY IN BEHAVIOURAL SCIENCE. CONCEPT PUBLICATION, 1994.
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