Kothari, C. R., & Garg, G. (2019). Research Methodology: Methods and Techniques (4th ed.). New Age International Publishers.
Lua i Stíl Chicago (17ú heag.)Kothari, C. R., agus Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Delhi: New Age International Publishers, 2019.
Lua MLA (9ú heag.)Kothari, C. R., agus Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Age International Publishers, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.