Abeydeera, Nilmini. Abeydeera, Padmini. <br/><br/>
Mathematics - Grade 9 Work Book. 

 - 1st Ed. 
 - Colombo :   Samudra book publication,   2010. 
 - 219 p. 
<br/><br/><label>ISBN: </label>9789550202324 
<br/><br/><label>Dewey Class. No.: </label>510  / ABE