(3cTa GdZWGA Yf Mce SeGY GdZfGA (B/ s - (3GHf bje GdLhRjI(B: (3TeS GdOjf GHh YHOGddg eMeO Hf GHi HcQs; (3QHjY Hf GMeO Nda (B((3eMbb(B)s ([S.N] : (3ecJHI GdSfI ddfTQ hGdJhRjY , s, 1991)
Keywords: (3Gdabg GdGSdGeis; (3GdMdGd hGdMQGes; (3Gdabg GdMfHdis; (3GMcGe GdZfGAs