Cita APA (7th ed.)

Kumar, R. (1999). Research methodology: A step-by-step guide for beginners. Sage.

Cita Chicago (17th ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. London: Sage, 1999.

Cita MLA (9th ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage, 1999.