Indayog ng panulat IV:  batay sa basic education curriculum IV. 
Ma. Cleofas P. Castillo...[et al.]. 
 - v, 134p.: ill. 
<br/><br/><label>ISBN: </label>971-621-274-7 
<br/><br/><label>Dewey Class. No.: </label>372.623 C352 2003