CECOTA, Błażej. Islam, the Arabs, and the image of the Caliphs in the accounts of the Chronography of Theophanes the Confessor: No. XLIII. Poland: Lodz University Press,2022. v. XLIII DOI: 10.18778/8220-903-7. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/174. Acesso em: 28 jan. 2026.