Cita APA (7a ed.)

Kumar, R. (2019). Research methodology: A step-by-step guide for beginners (5th edition.). SAGE.

Cita Chicago Style (17a ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 5th edition. London ; Thousand Oaks, California: SAGE, 2019.

Cita MLA (9a ed.)

Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 5th edition. SAGE, 2019.