Basic concepts in statistics(worktext) / 
Tattao, Luis A.  
 - Manila :  Rex Book Store,  2007. 
 - xii,361p.;22.1cm. 
<br/><br/>includes references, worksheets, index 
<br/><br/><label>ISBN: </label>9789712346934 
<br/><br/><label>Dewey Class. No.: </label>Fil 310 T221 2007