(3GdOHdheGSjI GdSJheKjJjI h GdUQGY GdOhdj aj GdHdbGf (B/ s - (3YHOGddg GdCTYds ((3GdbGgQI(B:s (3eWHYI GdLHdGhj,s, 1988)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdOHdheGSjI h GdSdc GdOHdheGSjs; (3GdbGfhf GdOhdj GdYGes