TY  - BOOK
AU  - Muhammad Asif Siddiqui, Sufyan Shaikh, Tabish Iqbal & Reema Tariq Mughal
TI  - Microcontroller Based Private Automatic Branch Exchange
U1  - 621.385072 ASI 
PY  - 2002///
CY  - Karachi
PB  - UIT
KW  - Computer System Engineering
KW  - Bachelor of Engineering (BE)
ER  -