Selvam S.K. Distance Education For National Development. APH Publishing.
Chicago-čujuhus (17. p.)Selvam S.K. Distance Education For National Development. New Delhi: APH Publishing.
MLA-čujuhus (9. p.)Selvam S.K. Distance Education For National Development. APH Publishing.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.