Whitten, Jeffrey L, & Bentley, L. D. (2007). Systems Analysis and Design Methods (0070634173.). McGraw-Hill / Tata McGraw-Hill.
Cita Chicago (17th ed.)Whitten, Jeffrey L, i Lonnie D. Bentley. Systems Analysis and Design Methods. 0070634173. New York / New Delhi: McGraw-Hill / Tata McGraw-Hill, 2007.
Cita MLA (9th ed.)Whitten, et al. Systems Analysis and Design Methods. 0070634173. McGraw-Hill / Tata McGraw-Hill, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.