Dyfyniad APA

KOTHARI, C. (2011). RESEARCH METHODOLOGY: Methods and techniques (2.). New Age International Publishers.

Dyfyniad Arddull Chicago

KOTHARI, C.R. RESEARCH METHODOLOGY: Methods and Techniques. 2. NEW DELHI: New Age International Publishers, 2011.

Dyfyniad MLA

KOTHARI, C.R. RESEARCH METHODOLOGY: Methods and Techniques. 2. New Age International Publishers, 2011.

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