(3JfhjO GdMhGdc TQM Ydi ehWGeGdc (B/ s - (3GdSjhWi (B: (3LdGd GdOjf GHhGdaVd YHOGdQMef Hf GHi HcQ Hf eMeO GdNVjQis ([S.N] : (3GdecJHI GdKbGajI , s, 1988)
Keywords: (3Gdabg GdGSdGeis; (3Gdabg GdeGdcis; (3GdePgH GdeGdcis