Kothari C R. (2014). Research Methodology (3rd.). New Age International Publisher.
Chicago-čujuhus (17. p.)Kothari C R. Research Methodology. 3rd. New Delhi: New Age International Publisher, 2014.
MLA-čujuhus (9. p.)Kothari C R. Research Methodology. 3rd. New Age International Publisher, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.