Teaching mathematics in seven countries : Results from the TIMSS 1999 video study / NCES, U.S. dep. of education. - Washington : U.S. gov. print. off., 2003. - XII, 222p. : ill. ; 28cm.см.. - With 1 CD. - Bibliogr.: p. 153-159. - ISBN 0-16-051381-2 : [n.p.][MFN: 14968]