Canonizado, Isagani Costales. <br/><br/>
Banghay-aralin sa edukasyong pantahanan VI/ 
Isagani Costales Canonizado. 
 - Philippines:  In the Grade School, Inc.,  c2010-2011. 
 - v59 n7, page 307;  28 cm. 
<br/><br/><label>ISSN: </label>2094-8042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>DPer 370.105 M72 June 2010-Mar 2011 v. 59 n. 1-10