(3GdJhHjN hGdJfHjg (B/s - (3MjGf, YHO Gddg Hf eMeO Hf LYaQ,s 274-369 (3gLQjs; (3GHf GdefOhg, MSf Hf Cejfs ((3GdbGgQI (B:s (3ecJHI GdJhYjI GdESdGejI,s, 1988)
Keywords: (3GdhYX hGdEQTGOs; (3GdJQHjI GdESdGejIs