(3GdfXGe GdbGfhfj ddENJQGYGJ aj L(B.(3Y(B.(3e (B/s - (3SejMI GdbdjhHjs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb(B-(3LGeYI GdbGgQI,s, 1969)
1
Keywords: (3GdbGfhf GdJLGQjs; (3GdGJMGO GdOhdj dMeGjI GdedcjI GdUfGYjIs; (3Mbhb GdedcjI GdUfGYjIs; (3GdGNJQGYGJs; (3GdHQGAGJ GdUfGYjIs; (3SQjI GdGNJQGYs; (3GdGSJZdGd GdUfGYjs