National center for educational research and development  <br/><br/>
Building up mathematics: Second year humanities section 

 - Sin El Fil  National center for educational research and development   1999 
 -  175 p.  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Math-- Study and teaching (Secondary Grade 11) -- Textbooks.
<br/><br/><label>Dewey Class. No.: </label>CRDP 510.712 Math. Gr.11h