(2006). National Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education.
Chicago-čujuhus (17. p.)National Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education, 2006.
MLA-čujuhus (9. p.)National Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.