Texto completo disponível: http://dspace.bc.uepb.edu.br/jspui/bitstream/123456789/10880/1/PDF%20-%20Naft%C3%A1ly%20de%20Araujo%20Vieira%20Melo.pdf
Texto completo disponível: http://dspace.bc.uepb.edu.br/jspui/bitstream/123456789/10880/1/PDF%20-%20Naft%C3%A1ly%20de%20Araujo%20Vieira%20Melo.pdf