Foong, Yoke Yeen <br/><br/>
A model of educational productivity for science for secondary-two students in Singapore / 
by Foong Yoke Yeen 
 - 3 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ed.D.)-University of Massachusetts, 1993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational productivity--Singapore.