Columbia subject headings:
Communication--Brazil--Congresses.
Communication--Congresses.
Mass media--Congresses.
Harvard subject headings:
Communication, International--Congresses.
Communication--Brazil--Congresses.
Communication--Congresses
Mass media--Brazil--Congresses.
Mass media--Congresses
Princeton subject headings:
Communication, International--Congresses.
Communication--Brazil--Congresses.
Communication--Congresses.
Mass media--Brazil--Congresses.
Mass media--Congresses.
Mass media--Social aspects--Brazil--Congresses.