(3GdJGQjN GdPi GMedg Ydi XgQi (B. (3GdLRA GdKGfi (B: (3eGA GdMjGI (B/ s - (3SjO YhjSs ((3GdbGgQI (B: s (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1986)
Keywords: (3GdGOH GdYQHis; (3GOH GdQMdGJs; (3SjO YhjS (B- (3GdePcQGJs; (3GdSjGSjhf GdeUQjhf (B- (3JQGLes