Dyfyniad APA

Kothari, C. R., & Garg, G. (2019). Research Methodology: Methods and Techniques (4th ed.). New Age International Publishers.

Dyfyniad Arddull Chicago

Kothari, C. R., and Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Delhi: New Age International Publishers, 2019.

Dyfyniad MLA

Kothari, C. R., and Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Age International Publishers, 2019.

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