(3GdMeGjI GdLfGFjI ddfXGe GdYGe ai GdYbhO GdeOfjI ai GdbGfhf GdeUQi GdaQfSi (B/ s - (3eMeO YjO GdZQjHs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1987)
Keywords: (3GdbGfhfs; (3bGfhf GdYbhHGJs; (3GdbGfhf GdYGes