Source: https://www.researchgate.net/profile/Pedro_Brocco/publication/338985682_O_mito_de_Sao_Tome_ou_Sume_O_nexo_teologico-politico_entre_o_Oriente_e_o_Ocidente/links/5e41863c458515072d91873b/O-mito-de-Sao-Tome-ou-Sume-O-nexo-teologico-politico-entre-o-Oriente-e-o-Ocidente.pdf