AAKER, D. A. (1995). Developing Business Strategies. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)AAKER, David A. Developing Business Strategies. John Wiley and Sons, 1995.
Lua MLA (8ú heag.)AAKER, David A. Developing Business Strategies. John Wiley and Sons, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.