APA استشهاد

Kothary, C. (1990). Research methdology /2e (2nd ed.). WileyEastern.

استشهاد بنمط شيكاغو

Kothary, C.R. Research Methdology /2e. 2nd ed. New Delhi: WileyEastern, 1990.

MLA استشهاد

Kothary, C.R. Research Methdology /2e. 2nd ed. WileyEastern, 1990.