TY  - BOOK
AU  - INDRA GANDHI NATIONAL OPEN UNIVERSITY
ED  - INDRA GANDHI NATIONAL OPEN UNIVERSITY
TI  - Annual report:  199-93   
U1  - TN6,4.2N93-N92r, N3 
PY  - 1993///
CY  -  New Delhi 
PB  - IGNOU         
ER  -