(3GdSjGSI GdLeQcjI GdOhdjI h GdJcJdGJ GdGbJUGOjI (B/s - (3YHO GdMcje GGdQaGYi s ((3GdbGgQI (B:s (3cdjI GdMbhb (B- (3LGeYI GdGRgQ (B,s, 1972)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdLeGQc GdOhdjI s