Vohra N D. (2013). Business Statistics. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Vohra N D. Business Statistics. New Delhi: McGraw Hill, 2013.
Lua MLA (9ú heag.)Vohra N D. Business Statistics. McGraw Hill, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.