Roy, R. (2011). Entrepreneurship. Pearson Education.
Lua i Stíl Chicago (17ú heag.)Roy, Rajeev. Entrepreneurship. Harlow: Pearson Education, 2011.
Lua MLA (9ú heag.)Roy, Rajeev. Entrepreneurship. Pearson Education, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.