TY  - BOOK
T1  - Basic systems analysis.
A1  - Lee, Barry
LA  - English
PP  - Philippines
PB  - National Book Store
YR  - 1980
UL  - https://tuklas.up.edu.ph/Record/UP-99796217607825740
OP  - 119
CN  - QA402 L43 1980
SN  - 9710800744
ER  -