Muhd Mansur Abdullah <br/><br/>
Ke arah sistem tolong bantu masakini  Satu pengenalan / 
Muhd Mansur Abdullah 
 - Kuala Lumpur  Tra Tra Pub.  1984 
 - p. 
<br/><br/><label>ISBN: </label>9679391396 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social ethics