PATEL J B. (1995). MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA.
Chicago-viite (17. p.)PATEL J B. MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. AHMEDABAD: ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA, 1995.
MLA-viite (9. p.)PATEL J B. MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA, 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.