APA استشهاد

Kothari, C. (2004). Research methodology: Methods and techniques (2nd ed.). New age international (P) limited.

استشهاد بنمط شيكاغو

Kothari, C.R. Research Methodology: Methods and Techniques. 2nd ed. New Delhi: New age international (P) limited, 2004.

MLA استشهاد

Kothari, C.R. Research Methodology: Methods and Techniques. 2nd ed. New age international (P) limited, 2004.