Beltran Yu, Romer F. <br/><br/>
Development and validation of learning resources in mathematics 9 / 
Romer F. Beltran Yu 
 - xv, 150 leaves: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Development.<br/>Validation.<br/>Module.<br/>Print.<br/>Non-print learning material.<br/>Instructional materials.<br/>Exponents.<br/>Radicals.
<br/><br/><label>Dewey Class. No.: </label>510  / B453d