APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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