Dyfyniad APA

Kothari, C. (2019). Research Methodology (4th.). New Age International.

Dyfyniad Arddull Chicago

Kothari, C.R. Research Methodology. 4th. New Age International, 2019.

Dyfyniad MLA

Kothari, C.R. Research Methodology. 4th. New Age International, 2019.

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