(3GdeSFhdjI GdLfGFjI ddCWHGA hGdUjGOdI (B/s - (3efjQ QjGV MfGs ((3GdGScfOQjI (B:s (3OGQ GdeWHhYGJ GdLGeYjI ,s, 1989)
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. 259-251 (3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3GdeSFhdjI GdLfGFjI ddCWHGA hGdUjGOdIs; (3GdbGfhf GdLfGFjs