Kumar,Ranjit. (2019). Research Methodology A Step-by-Step Guide for Beginners (5th.). Sage.
Chicago-čujuhus (17. p.)Kumar,Ranjit. Research Methodology A Step-by-Step Guide for Beginners. 5th. London: Sage, 2019.
MLA-čujuhus (9. p.)Kumar,Ranjit. Research Methodology A Step-by-Step Guide for Beginners. 5th. Sage, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.