(3GdOaGY GdTQYj aj GdbGfhf GdOhdj GdYGe hejKGb GdCee GdeJMOI s - (3LeGd GdOjf YWjIs ((3HjQhJ (B: s (3OGQ GdacQ GdMOjK , s, 1950)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOhdj GdYGes