TY  - BOOK
AU  - Usama Ahmed, Danish Ahmed, S. Raheel Khan, Noman Razzak & S. M. Ahsn Abbas Zaidi
TI  - Building Management System Using RS-485 Communication
U1  - 621.389072 USA 
PY  - 2009///
CY  - Karachi
PB  - UIT
KW  - Electronic Engineering
KW  - Bachelor of Engineering (BE)
UR  - https://drive.google.com/file/d/1g8s7r2ZoIXgRRVJzU7O_HzhK0SqGLgKd/view?usp=sharing
ER  -