TY  - BOOK
AU  - Mysahra Shawkat Ali, 
TI  - English
SN  - 9831502736
U1  - 428.076 23
PY  - 2006///
CY  - Kuala Lumpur : 
PB  - Arus Intelek , 
KW  - Science - Study and teaching
ER  -