Nargundkar,Rajendra. (2008). Marketing Research (3rd.). McGraw Hill Education.
Lua i Stíl Chicago (17ú heag.)Nargundkar,Rajendra. Marketing Research. 3rd. New Delhi: McGraw Hill Education, 2008.
Lua MLA (9ú heag.)Nargundkar,Rajendra. Marketing Research. 3rd. McGraw Hill Education, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.