APA استشهاد

Kothari, C. (2004). Research methodology: Methods and techniques. New Age Interantional.

استشهاد بنمط شيكاغو

Kothari, C.R. Research Methodology: Methods and Techniques. New Delhi: New Age Interantional, 2004.

MLA استشهاد

Kothari, C.R. Research Methodology: Methods and Techniques. New Age Interantional, 2004.