Journal of dry zone agriculture, vol.4, no. 1-2, (2018) 

 - Jaffna:  Faculty of Agriculture,  2018. 
 - 01.05.2018-30.11.2018 
<br/><br/><label>ISBN: </label>2012-8673 
<br/><br/><label>Dewey Class. No.: </label>630.05  / JOU