"Announcemente". Angra's official Facebook page (in Portuguese). Facebook. May 12, 2014. Archived from the original on 2022-02-26. Retrieved May 12, 2014.
"Announcemente". Angra's official Facebook page (in Portuguese). Facebook. May 12, 2014. Archived from the original on 2022-02-26. Retrieved May 12, 2014.
dos Santos, Niva (April 9, 2003). "Entrevista Exclusiva". Portal do Rock (in Brazilian Portuguese). Archived from the original on July 6, 2011. Retrieved July 1, 2011.
dos Santos, Niva (April 9, 2003). "Entrevista Exclusiva". Portal do Rock (in Brazilian Portuguese). Archived from the original on July 6, 2011. Retrieved July 1, 2011.