TY  - BOOK
AU  - Korai, Zia-ur-Rehman
AU  - Baloch, A.K
TI  - ISDN in EWSD Exchange
PY  - 2003///
CY  - MUET, Jamshoro
PB  - Department of Electronics Engineering
KW  - EWSD Exchange
N1  - Includes References & index
ER  -