Cita APA (7th ed.)

Kumar, R. (2014). Research Methodology A Step -by- Step Guide for Beginners (4th.). Sage.

Cita Chicago (17th ed.)

Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. Sage, 2014.

Cita MLA (9th ed.)

Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. Sage, 2014.

Atenció: Aquestes cites poden no estar 100% correctes.