Sevilla, Consuelo G.  <br/><br/>Research methods  / Consuelo G. Sevilla, Jesus A. Ochave, Twila G. Punsalan, Bella P. Regala and Gabriel G. Uriarte.--  -- Rev. ed.   -- Manila:  Rex Book Store,  1992.  <br/>xiv, 333 p. ;  23 cm.  <br/><br/> Includes bibliographical references and index.  <br/><br/><label>ISBN: </label>971-23-1058-2 <br/><br/><label>Dewey Class. No.: </label>Fil 001.4 R311 1992