Alen, James Gamachchi,  adaptor Leelananda <br/><br/>
Prayogika manovidyava: sarthaka jeewithaye rahasa 
/ James Alen; adaptor Leelananda Gamachchi 
 - Mulleriyawa  Wijesooriya Book Centre  2005 
 - 85 p. 
<br/><br/><label>ISBN: </label>9556522085 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social behaviour
<br/><br/><label>Dewey Class. No.: </label>304  / ALE