KUMAR, R. (2014). Research methodology: A step-by-step guide for beginners. Sage Publications.
Lua i Stíl Chicago (17ú heag.)KUMAR, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage Publications, 2014.
Lua MLA (9ú heag.)KUMAR, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage Publications, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.