YEM, TOUCH. <br/><br/>
Poly culture of extensive fish faming, ការចិញ្ចឹមត្រីចំរុះ 

 - Phnom Penh  RUA  2010 
 - ix; 24p.  ill.  29cm. 
<br/><br/><label>Dewey Class. No.: </label>GRS YEM 2010 B357 Or.1