GUPTA N S. (2003). BUSINESS POLICY AND STRATEGIC MANAGEMENT. HIMALAYA PUBLISHING HOUSE.
Lua i Stíl Chicago (17ú heag.)GUPTA N S. BUSINESS POLICY AND STRATEGIC MANAGEMENT. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2003.
Lua MLA (9ú heag.)GUPTA N S. BUSINESS POLICY AND STRATEGIC MANAGEMENT. HIMALAYA PUBLISHING HOUSE, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.