(3GdefWb GdKhQj ddMQcI GdbhejI GdYQHjI GdMOjKI (B/ s - (3GdQjeGhj, YHO Gddg, s ((3GdbGgQI (B[(3eUQ(B] : s (3OGQ GdeYQaI (B961.s, 1961)
Keywords: (3GdbhejI GdYQHjI(B.s; (3GdhMOI GdYQHjI(B.s; (3GdKhQGJ(B.s