TY  - BOOK
AU  - Rai,Amar Nath
TI  - Distance education: open learning vs virtual university concepts 
SN  - 8172730365
AV  - LC5800 .W55 2000
U1  - 371.3 
PY  - 2000///
CY  - Delhi
PB  - Authors Press
KW  - Distance education system educational system
ER  -