Percentage of Higher Education Institutions Offering Distance Education. US Department of Education.
Chicago-čujuhus (17. p.)Percentage of Higher Education Institutions Offering Distance Education. US Department of Education.
MLA-čujuhus (9. p.)Percentage of Higher Education Institutions Offering Distance Education. US Department of Education.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.