Gaya APA

Bentley, L, D., Whitten, J, L. (2007). Systems Analysis & Design for the Global Enterprise (7th ed). : Mc Graw Hill.

Gaya MLA

Bentley, Lonnie, D.., Whitten, Jeffrey, L.. "Systems Analysis & Design for the Global Enterprise". 7th ed : Mc Graw Hill, 2007. Text.