Pagsasanay na pangkaunlaran ng kabataan: : YDT-2 panlalaki/ 
Ocampo, Philip D.O. 
 -  National Book store, Inc.,  1981 
 - 186 p. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational education.
<br/><br/><label>Dewey Class. No.: </label>F 793 O151 1981