Songco, Evelyn A.-- <br/><br/>Teaching Strategies in the Social Sciences:  for Elementary Grades  -- Quezon City:  Katha publishing co., inc.,  2002. <br/>v. 146 p.;  ill.;  25 cm. <br/><br/> includes bibliographical references. <br/><br/><label>ISBN: </label>9715740405 <br/><br/><label>Dewey Class. No.: </label>GS Res 371.1 So587 2002