Perera, Lal  <br/><br/>
Achievement After Four Years of Schooling : National Report 

 - Colombo :  NEREC,  2004 
 - xxiii, 154p.;  29cm 
<br/><br/><label>ISBN: </label>9551187008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Report