17th World Congress of Soil Science 14-21 August 2002, Bangkok, Thailand : Sroil Science : Confronting New Reakuties in the 21st Contury : Abstracts Volum V : symposia 53-65 

 -  Srimuang Printing,  2545 
<br/><br/><label>Source: </label> 2002-09-26