(3GdBdI h GdCOGIs - (3GdQUGaj(B. (3eYQhas ((3OGQ GdQTjOs (3GdYQGbs, 1980)
Keywords: (3eYLe GddZI GdYQHjIs; (3GddZI GdYQHjI (B- (3eYGLes