RAMANUJAM, P. R. (2002). Distance open learning: Challenges to developing countries. Shipra publications.
Chicago-referens (17:e uppl.)RAMANUJAM, P. Renga. Distance Open Learning: Challenges to Developing Countries. Shipra publications, 2002.
MLA-referens (9:e uppl.)RAMANUJAM, P. Renga. Distance Open Learning: Challenges to Developing Countries. Shipra publications, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.