Dyfyniad APA
Kothari, C. R. (2007). Research methodology: Methods and techniques (2nd Ed.). New Age International.
Dyfyniad Arddull Chicago
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd Ed. New Delhi: New Age International, 2007.
Dyfyniad MLA
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd Ed. New Age International, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.