TY  - GEN
AU  - Valacich Joseph S
AU  - George, Joey F.
AU  - Hoffer, Jeffrey A.
TI  - Essentials of systems analysis and design
SN  - 0131854623
AV  - QA76.9.S88 
PY  - 2006///
CY  - Upper Saddle River, NJ
PB  - Prentice Hall
KW  - System design
KW  - System analysis
N1  - Dizin; KaynakÃ§a: s. 429-433
ER  -