(3JGQjN GdeZQH GdYQHi GdLRA GdKGdK (B: s (3GdaGWejhf hHfhRjQi GdUfgGLjhf Gdi bjGe GdeQGHWjf (B/ s - (3SYO RZdhd YHOGdMejOs ((3GdbGgQI (B: s (3efTGI GdeYGQa , s, 1990)
Keywords: (3GdOhdI GdaGWejIs; (3GdeQGHWhfs; (3GdOhdI GdUfgGLjIs; (3GdeZQH GdYQHi (B- (3JGQjNs