APA সাইটেশন

Kothari, C. (2004). Research methodology: Methods & techniques (2nd rev. ed.). New age international.

শিকাগো স্টাইলে সাইটেশন

Kothari, C.R. Research Methodology: Methods & Techniques. 2nd rev. ed. New Delhi: New age international, 2004.

এমএলএ সাইটেশন

Kothari, C.R. Research Methodology: Methods & Techniques. 2nd rev. ed. New age international, 2004.