Dyfyniad APA

Gupta, M., & Gupta,Deepa. (2011). Research methodology. PHI learning.

Dyfyniad Arddull Chicago

Gupta, Mukul, and Gupta,Deepa. Research Methodology. New Delhi: PHI learning, 2011.

Dyfyniad MLA

Gupta, Mukul, and Gupta,Deepa. Research Methodology. PHI learning, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.