Ahsan Abdullah. creator nju Lahore Pak Book c1998 2000 eng 310 p. : ill. ; 25 cm. Ahsan Abdullah. Includes glossary & index. Computer networks Internetworking Telecommunication TK5105.585 .C66 2000 004.672 AHS 9698133 (pbk.) 0005944 000717 20260430073258.0 12109184231