នាក់ ថុន  <br/><br/>
Techniques of planing and upkeeped nursery young rubber in boeung ket rubber plantaion company,( បច្ចេកទេសដាំកៅស៊ូ និងការថែទាំ 

 - phnom phen  RUA  1996 
 - 65P.  ILL.  29CM. 
<br/><br/><label>Dewey Class. No.: </label>AGR នាក់ 1996 BOO17 Or.1