Gunasena, H.P.M. <br/><br/>
Manual on jak cultivation in Sri Lanka /  
H.P.M. Gunasena,K. P. Ariyadasa and Anoja Wickramasinghe.  
 - Battaramulla :  Forestry information services,  1996. 
 - 48 p. 
<br/><br/><label>ISBN: </label>9559153080 
<br/><br/><label>Dewey Class. No.: </label>634.0954  / MAN