Gupta, L. (1989). Basic For Business Lav Gupta. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Gupta, Lav. Basic For Business Lav Gupta. McGraw-Hill, 1989.
Lua MLA (8ú heag.)Gupta, Lav. Basic For Business Lav Gupta. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.