1. Digital telephony and network integration
Author: Bernhard E. Keiser and Eugene Strange
Library: Central Library and Information Center of Shahed University (Tehran)
Subject: Digital telephone systems
Classification :
TK
،
6421
،.
K45
،
1995
2. Digital telephony and network integration
Author: Keiser, Bernhard
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Digital telephone systems
Classification :
TK
6421
.
K45
1985
