Sinha Shivesh. Zenith Limited An Analysis. MBA CORE ,2005.
Lua i Stíl Chicago (17ú heag.)Sinha Shivesh. Zenith Limited An Analysis. : MBA CORE ,2005.
Lua MLA (9ú heag.)Sinha Shivesh. Zenith Limited An Analysis. MBA CORE ,2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.