(3GdJQHjI h GdJYdje aj GdCfOdS (B/ s - (3GdYcT, GHQGgje Ydjs ((3YeGf (B:s (3OGQ YeGQ,s, 1986)
Keywords: (3GdJQHjI h GdJYdjes; (3GdCfOdSs