(3BOGH Gdedhc dCHj efUhQ YHO Gddg eMeO Hf GSeGYjd GdKYGdHj (B( 350 - 429) (3g (B/s - (3Ldjd, GdYWjIs ((3HjQhJ (B:s (3OGQ GdZQH GdGSdGej ,s, 1990)
Keywords: (3GdSdWGf s; (3NOeI Gdedhcs; (3SjGSI Gdedhc s