TY  - BOOK
AU  - Abdul Ahad Khan, Muhammad Usman Zafar & Muhammad Usman Adil
TI  - Two Way Voice Communication VIA Fiber Optics
U1  - 621.3692072 KHA 
PY  - 2012///
CY  - Karachi
PB  - UITU
KW  - Telecommunication Engineering
KW  - Bachelor of Engineering (BE)
ER  -