Shetty, R. (2011). The Happiness Quotient. Westland Ltd.
Lua i Stíl Chicago (17ú heag.)Shetty, Rekha. The Happiness Quotient. Noida: Westland Ltd, 2011.
Lua MLA (9ú heag.)Shetty, Rekha. The Happiness Quotient. Westland Ltd, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.