Abeypala, Roland <br/><br/>
දත්ත රැස්කිරීමේ උපකරණ 
= paryeeSHana kramavidhyaava daththa raeskirimee upakaraNa 


 - Kottawa:  Sara,  2008. 
 - 152p.;  21cm 
<br/><br/><label>ISBN: </label>955-584-454-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistical Methods<br/>Research
<br/><br/><label>Dewey Class. No.: </label>001.422  / ABE