TY  - BOOK
AU  - A Ziya Aktas
TI  - Structured Analysis & Design of Information System
U1  - 004.21  AKT-S 
PY  - 1979///
PB  - Prentice Hall Inc.
KW  - Structured Analysis & Design of Information System A Ziya Aktas, Data flow diagrams,warnier/orr diagrams
ER  -