TY  - BOOK
AU  - Ayala, Kenneth, J 
TI  - 8051 Microcontroller 
SN  - 981-254-261-2 
U1  - 004.165 AYA  
PY  - 9810///254-261-2
CY  - Tata mc graw hill ltd. 
PB  - New Delhi 
KW  - MICROPROCESSOR
ER  -