Class performance among grade one pupils who have undergone preschool in Sibalom Central School (SY 1998-1999) 
Delos Santos, Jeanette C. 
 -  Polytechnic State College of Antique.  1999 
 - 40 leaves 
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<br/><br/><label>Dewey Class. No.: </label>TH 371.33 D37c 1999