Performance in mathematics of grade five pupils of culasi central school for the school year 1998-1999 
Ernesto D. Ortega. 
 -  Polytechnic State College of Antique,  1999 
 - viii, 52 leaves;. 
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<br/><br/><label>Dewey Class. No.: </label>TH 371.33 Or1p 1999