Qayyum, A. <br/><br/>
Non-formal approaches to revitalize basic education :  some stray experiences of Pakistan / 
by A. Qayyum. 
 - París :  New York :  UNESCO ;  UNICEF,  1981. 
 - 8 p. 
 - Notes, comments... ;  61 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.018.8 (549) =20 QAY No.61.