A System approach to teaching and learning procedures:  a guide for educators. 

 - 2nd ed rev. and expanded 
 - Paris:  Unesco,  1981. 
 - 203p. 24cm 
<br/><br/><label>ISBN: </label>9231018264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developing countries--Education<br/>Teaching<br/>System analysis