Goleman, D. (2014). Focus. Bloomsbury India.
Lua i Stíl Chicago (17ú heag.)Goleman, Daniel. Focus. New Delhi: Bloomsbury India, 2014.
Lua MLA (9ú heag.)Goleman, Daniel. Focus. Bloomsbury India, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.