(3GdHYO GdReGfj h GdecGfj h CKQgeG aj GdJYGed eY GdfU GdTQYj (B/ s - (3Hh gQGhI, SYjO Hf eMeOs ((3YeGf (B:s (3OGQ GdfaGFS,s, 1999)
Keywords: (3CUhd Gdabgs; (3CUhd GdOjf GdESdGejs; (3GdfU GdTQYjs