TY  - BOOK
AU  - Ramanujam,P.Renga
TI  - Distance open learning: challenges to developing countries
SN  -  817541264x
U1  - 370.07154 
PY  - 2005///
CY  - New delhi
PB  - Shipra publications
KW  - EDUCATION
KW  - open education
KW  - শিক্ষাবিজ্ঞান
N1  - Bibliography
ER  -