TY  - BOOK
AU  - Shelly, Gary B.
TI  - Systems analysis and design
SN  - 13: 978-981-4384-24-7
AV  - 658.4038011 Sh43s 
PY  - 2012///
CY  - Singapore
PB  - Cengage Learning Asia pte.
KW  - System analysis
KW  - System design
ER  -