APA-čujuhus (7. p.)
Kumar, R. (2005). Research methodology: A step by-by-step guide for beginners (2nd ed.). Sage Publications.
Chicago-čujuhus (17. p.)
Kumar, Ranjit. Research Methodology: A Step By-by-step Guide for Beginners. 2nd ed. London: Sage Publications, 2005.
MLA-čujuhus (9. p.)
Kumar, Ranjit. Research Methodology: A Step By-by-step Guide for Beginners. 2nd ed. Sage Publications, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.