Barre, Prabhudas <br/><br/>
Study on the perceived effectiveness of OER adoption by open university and dual mode institutions in the states of Andhra Pradesh and Telangana/ 
Prabhudas Barre 
 - New Delhi;  IGNOU,  2024. 
 - xxii, 246p. 
<br/><br/> PhD. Thesis in Distance Education