Abeydeera, Nilmini. Abeydeera, Padmini. <br/><br/>
GRADE 7 - SECOUNDARY MATHEMATICS :   Theory, Examples, Exercises, Answers. 

 - 2nd Ed. 
 - Colombo :   samudra publications,   2019. 
 - 285 p. 
<br/><br/><label>ISBN: </label>9789556805925 
<br/><br/><label>Dewey Class. No.: </label>510  / ABE