Dyfyniad APA

Kothari, C. R. (2020). Research methodology (4th.). New Age International Publisher, New Delhi.

Dyfyniad Arddull Chicago

Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.

Dyfyniad MLA

Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.

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