Nargundkar Rajendra. (2011). Marketing Research: Text and cases (3rd.). Tata McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Nargundkar Rajendra. Marketing Research: Text and Cases. 3rd. New Delhi: Tata McGraw Hill, 2011.
Lua MLA (9ú heag.)Nargundkar Rajendra. Marketing Research: Text and Cases. 3rd. Tata McGraw Hill, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.