Diges Ilmiah Centre of Air-Conditioning and Refrigeration  Vol.3, No.1 Oktober 2015 

 - Ipoh,Perak  Polytechnic Ungku Omar 
 - 51p  ill  30cm 
<br/><br/><label>ISSN: </label>22895388 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air-Conditioning<br/>Refrigeration--refrigeration machinery