Defensor, Josefina N. <br/><br/>
A teaching guide on instructional aids in modern mathematics for the primary grades/ 
by Josefina N. Defensor, Glorina N. Tremedal consultant Selladurai Panchalingam. 
 - Penang:  SEAMEO Regional Centre for Edu. in Science and Mathematics,  1974. 
 - 141 p. : ill.;   27 cm. 
 - TCM-1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Primary)<br/>Mathematics--Teacher training<br/>Mathematics--1961-