Common spelling errors of grade six pupils of sibalom central school for the school year 1998-1999 
Cristina Y. Bardinas. 
 -  Polytechnic State College of Antique,  1999 
 - x, 37 leaves;. 
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<br/><br/><label>Dewey Class. No.: </label>TH 371.33 B23c 1999