TY  - BOOK
AU  - Singh, Arun Kumar
TI  - Audogik avm sangathanatmak manovigyan (Hindi)
SN  - 81-7709-546-3
U1  - 158.3 SA:A 
PY  - 2003///
CY  - Patna
PB  - Bharti Bhawan
ER  -