APA সাইটেশন

Gupta, M. (2011). Research methodology. PHI Learning private limited.

শিকাগো স্টাইলে সাইটেশন

Gupta, Mukul. Research Methodology. New Delhi: PHI Learning private limited, 2011.

এমএলএ সাইটেশন

Gupta, Mukul. Research Methodology. PHI Learning private limited, 2011.