The Open University of Sri Lanka <br/><br/>
Algebra  unit 1  elementary number theory 

 - Nawala  The Open University of Sri Lanka 
 - 137p.  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512.72  / OPE