(3QbGFb hfaMGJ ef cJGH GdeOgT (B/s - (3chLc, YHO GdQRGb eMeOs ((3LOI (B- (3GdSYhOjI(B:s (3ecJHI OGQ GdhaGA ddfTQ hGdJhRjY,s, 1990)
(3HHdjhLQGajI (B: (3UaMI (B115.s
Keywords: (3GHf GdLhRj, YHO GdQMef Hf Ydjs; (3GdhYX hGdEQTGOs