(3GdJGQjN GdPi GMedg Ydi XgQi (B. (3GdLRA GdGhd (B: (3OQGSI MGdI (B/ s - (3SjO YhjSs ((3GdbGgQI (B: s (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1985)
Keywords: (3GdQLGd (B- (3JQGLes; (3GdSjGSjhf (B- (3JQGLes; (3SjO YhjSs