Estimate based on primary sources, Stoyanov 2019, pp. 723–724. Stoyanov, Aleksandar (2019). "The Size of Bulgaria's Medieval Field Armies: A Case Study of Military Mobilization Capacity in the Middle Ages". Journal of Military History. 83 (3): 719–746. ISSN0899-3718.
Guilland 1959, pp. 110–111. Guilland, Rodolphe (1959). "L'Expedition de Maslama contre Constantinople (717–718)". Études byzantines (in French). Paris: Publications de la Faculté des Lettres et Sciences Humaines de Paris: 109–133. OCLC603552986.
For a detailed examination of Leo's negotiations with the Arabs before Amorium in Byzantine and Arab sources, cf. Guilland 1959, pp. 112–113, 124–126. Guilland, Rodolphe (1959). "L'Expedition de Maslama contre Constantinople (717–718)". Études byzantines (in French). Paris: Publications de la Faculté des Lettres et Sciences Humaines de Paris: 109–133. OCLC603552986.
Stoyanov 2019, pp. 723–724. Stoyanov, Aleksandar (2019). "The Size of Bulgaria's Medieval Field Armies: A Case Study of Military Mobilization Capacity in the Middle Ages". Journal of Military History. 83 (3): 719–746. ISSN0899-3718.
Guilland 1959, p. 129. Guilland, Rodolphe (1959). "L'Expedition de Maslama contre Constantinople (717–718)". Études byzantines (in French). Paris: Publications de la Faculté des Lettres et Sciences Humaines de Paris: 109–133. OCLC603552986.
Mango & Scott 1997, p. 548 (Note #16); Guilland 1959, pp. 116–118. Mango, Cyril; Scott, Roger (1997). The Chronicle of Theophanes Confessor. Byzantine and Near Eastern History, AD 284–813. Oxford: Oxford University Press. ISBN0-19-822568-7. Guilland, Rodolphe (1959). "L'Expedition de Maslama contre Constantinople (717–718)". Études byzantines (in French). Paris: Publications de la Faculté des Lettres et Sciences Humaines de Paris: 109–133. OCLC603552986.