TY  - BOOK
AU  - Shay, William A.
TI  - Understanding data communications and networks
SN  - 981-254-699-8
U1  - 621.382 
PY  - 2004///
CY  - Chanai
PB  - Thomson
KW  - Communicahan system
KW  - Computer network
KW  - Digital electornics
N1  - Includes index; Shankar book
ER  -