TY  - BOOK
AU  - Talesra,Hemlata
TI  - Open and distance learning: global challenges 
SN  - 8172731582
PY  - 2004///
CY  - New Delhi
PB  - Authors Press
KW  - Distance education
KW  - Adult education
KW  - Educational technology
KW  - Open learning
N1  - Bibliography : p. [255]-260
ER  -