(3GdeTcdGJ GdYedjI dJTQjYGJ GdOhdI GdLRFjI (B:s (3LQGFe GdJehjf hGdJSYjQ GdLHQi (B- (3LQGFe GdGScGf (B/s - (3YHOGdMejO GdThGQHis ([ (3GdGScfOQjI (B] : s (3efTGI GdeYGQa , s, 1992)
Keywords: (3GdbGfhfs; (3GdbGfhf GdJLGQis