Kumar, R. (2014). Research Methodology A Step -by- Step Guide for Beginners (4th.). Sage.
Chicago-referens (17:e uppl.)Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. New delhi: Sage, 2014.
MLA-referens (9:e uppl.)Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. Sage, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.