International study of achievement in mathematics
Husen Torsten Ed.
International study of achievement in mathematics Husen Torsten Ed. - New York John Wiley 1967 - 368p. cm.
International project for the evaluation of educational achievement
General Book
Education
Teaching Techniques
T:3,(B).1.N6, K7.2
International study of achievement in mathematics Husen Torsten Ed. - New York John Wiley 1967 - 368p. cm.
International project for the evaluation of educational achievement
General Book
Education
Teaching Techniques
T:3,(B).1.N6, K7.2
