TY  - BOOK
AU  - M. Salman-ur-Rehman, Naila Masood & Muhammad Khan
TI  - Billing Interface Through Web and Cellular Phone
U1  - 004.62072 SAL 
PY  - 1999///
CY  - Karachi
PB  - UIT
KW  - Computer Science
KW  - Bachelor of Computer Science (BS)
ER  -