Diges Ilmiah Centre of Air-Conditioning and Refrigeration  Vol.2, No.2, November 2014 

 - Ipoh,Perak  Polytechnic Ungku Omar 
 - 73p  ill  26cm 
<br/><br/><label>ISSN: </label>22895388 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air-conditioning<br/>Refrigeration--refrigeration machinery