Singh P.N & Saboo Late J.C. (2003). Entrepreneurship Management. Dr.P.N. Singh Centre for HRD.
Lua i Stíl Chicago (17ú heag.)Singh P.N agus Saboo Late J.C. Entrepreneurship Management. Mumbai: Dr.P.N. Singh Centre for HRD, 2003.
Lua MLA (9ú heag.)Singh P.N agus Saboo Late J.C. Entrepreneurship Management. Dr.P.N. Singh Centre for HRD, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.