Cabral, F. J. G. (2015). "HIGHLY IMPORTANT! REVOLUTION IN BRAZIL ": The disclosure of the republic of Pernambuco of 1817 in the United States. Universidade Federal de Pernambuco.

Cabral, Flávio José Gomes. "HIGHLY IMPORTANT! REVOLUTION IN BRAZIL ": The Disclosure of the Republic of Pernambuco of 1817 in the United States. Universidade Federal de Pernambuco, 2015.

Cabral, Flávio José Gomes. "HIGHLY IMPORTANT! REVOLUTION IN BRAZIL ": The Disclosure of the Republic of Pernambuco of 1817 in the United States. Universidade Federal de Pernambuco, 2015.