academic performance of grade one pupils of valderrama central school who have undergone pre-school during the school year 1998-1999 
Emma M. Caligan. 
 -  Polytechnic State College of Antique,  1999 
 - vi, 30 leaves;. 
<br/><br/>
<br/><br/><label>Dewey Class. No.: </label>TH 371.33 C11a 1999