GHE. (2006). Strategy and Business Landscape. Pearson.
Lua i Stíl Chicago (17ú heag.)GHE. Strategy and Business Landscape. New Delhi: Pearson, 2006.
Lua MLA (9ú heag.)GHE. Strategy and Business Landscape. Pearson, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.