Sourcebook on practical work for teacher trainers :  high school mathematics III and IV, vol. 1 / 
The High School Mathematics Group Writers, Soledad A. Ulep ...[et al]. 
 - Diliman, Quezon City :  UP ISMED,  1999. 
 - 239 p. ; ill. ; 30 cm 
<br/><br/><label>ISBN: </label>9715700578 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Secondary)<br/>Mathematics--Teacher training--Philippines