Kothari, C. R., & Garg, G. (2019). Research Methodology: Methods and Techniques (4th ed.). New Age International Publishers.
Chicago-čujuhus (17. p.)Kothari, C. R., juo Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Delhi: New Age International Publishers, 2019.
MLA-čujuhus (9. p.)Kothari, C. R., juo Gaurav Garg. Research Methodology: Methods and Techniques. 4th ed. New Age International Publishers, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.