Ahmad Ismail <br/><br/>
Ekologi air tawar / 
Ahmad Ismail, Ahmad Badri Mohamad 
 - Kuala Lumpur :  Dewan Bahasa dan Pustaka,  1992 
 - 265 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9836225536 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater ecology