National center for educational research and development <br/><br/>
Building up mathematics secondary education first year (specimen) 

 - Sil El Fil  National center for educational research and development  1998 
 -  333 p.  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Math -- Study and teaching (Secondary Grade 10) -- Textbooks
<br/><br/><label>Dewey Class. No.: </label>CRDP 510.712 Math. Gr.10