circle written underneath (information security first stage).. and in it written(Group C & D).
circle written underneath (information security first stage).. and in it written(Group C & D).
circle written underneath (information security first stage).. and in it written(Group C & D).
the cover of a book with a clock on it
an image of a circular disc with a lot of words on it
an image of a circular lens with words on it
a ring made out of newspaper on a dark background