Cita APA (7th ed.)

Kumar, R. (2014). Research methodology: A step-by-step guide for beginners (4a. ed.). SAGE.

Cita Chicago (17th ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4a. ed. Los Angeles: SAGE, 2014.

Cita MLA (9th ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4a. ed. SAGE, 2014.