Ranjit Kumar. (2014). Research Methodology (4th ed.). SAGE Publication.
Chicago-čujuhus (17. p.)Ranjit Kumar. Research Methodology. 4th ed. Delhi: SAGE Publication, 2014.
MLA-čujuhus (9. p.)Ranjit Kumar. Research Methodology. 4th ed. SAGE Publication, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.