(3GbJUGOjGJ GdJNWjW(B.s (3GdGYJHGQGJ GdfXQjI(B-(3GdbQGQGJ GdafjI(B-(3ELQGAGJ GdJNWjW (B/s - (3YHOGdaJGM bfOjds ((3GdbGgQI(B:s (3OGQ GdfgVI GdYQHjI(B,s, 1972)
(3jTed Ydi GQLGYGJ HHdjhLQGajIs
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3GdGbJUGOs