APA استشهاد

Kothari, C. R. (2004). Research methodology: Methods and techniques (2nd rev. ed.). New Age International (P) Ltd..

استشهاد بنمط شيكاغو

Kothari, C. R. Research Methodology: Methods and Techniques. 2nd rev. ed. New Delhi: New Age International (P) Ltd., 2004.

MLA استشهاد

Kothari, C. R. Research Methodology: Methods and Techniques. 2nd rev. ed. New Age International (P) Ltd., 2004.