Introduction to environmental engineering / 
Norazian Mohamed Noor ... [et.al]. 
 - Kangar, Perlis :  Penerbit Universiti Malaysia Perlis,  2009. 
 - 136 p. :  ill.,  25 cm. 
<br/><br/><label>ISBN: </label>9789834418250 (pbk.)  RM50.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering.<br/>Sanitary engineering.