Rao, V.K. <br/><br/>Effective teachers and teaching/ V.K. Rao; R.S. Reddy.  -- New Delhi:  Commonwealth Publishers.,  2005. <br/>276 p.;  21 cm. <br/><br/><label>ISBN: </label>8171692370 <br/><br/><label>Dewey Class. No.: </label>GSL 371.11 E36 2005