(3GdUMhI GdOjfjI h gehe GdhWf GdYQHj (B: s (3fOhI YeGf (B/ s - (3MjOQ, Ndjd Ydjs ((3GdchjJ (B:s (3TQcI cGVeI,s, 1987)
Keywords: (3GdESdGes; (3GdeDJeQGJs