(2006). Trends in International Mathematics & Science Study 2003 Nonresponse Bias Analysis. U.S. Department of Education.
Citace podle Chicago (17th ed.)Trends in International Mathematics & Science Study 2003 Nonresponse Bias Analysis. U.S. Department of Education, 2006.
Citace podle MLA (9th ed.)Trends in International Mathematics & Science Study 2003 Nonresponse Bias Analysis. U.S. Department of Education, 2006.
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