Ahrweiler, Hélène, L’idéologie politique de l’Empire byzantin, Paris: Presses Universitaires de France, 1975. (Japanese translation by Shoju, Keitaro, Bizantsuteikokuno seijiteki ideorogii, Kanagawa: Tokai University Press, 1989.)
Browning, Robert, Byzantium and Bulgaria: A Comparative Study Across the Early Medieval Frontier, London: Temple Smith, 1975. (Japanese translation by Kinbara, Yasuo, Bizantsuteikoku to Burugaria, Kanagawa: Tokai University Press, 1995.)
Busquets, Porcel, Isabel, Esteve Rosselló, Miguel José & Pau Marimon Ribas, “Continuity and Discontinuity in the Balearic Islands during the Byzantine period (VI-VIII centuries)”. 2013 Edinburgh University Seventh century Colloquium; 29 May 2013; Edinburgh.
Choniates, Nicetas, Harry J. Magoulias (trans.), O City of Byzantium, Annals of Niketas Choniates (Byzantine Texts in Translation), Detroit: Wayne State Univ Pr., 1984
Inoue, Koichi, Takeo Kuryuzawa, Bizantsu to Suravu (Sekaino Rekishi) [Byzantium and the Slavs (World History)], Tokyo: Chuo Koron Shinsha, 2009
Inoue, Koichi and Yukio Nezu (eds), Bizantsu: Kouryuu to kyousei no sennenteikoku(Byzantium: The Millennial Empire of Interactions and Coexistences), Kyoto: Showado 2013.
Harris, Jonathan, The End of Byzantium, New Haven, Conn.: Yale University Press, 2010. (Japanese translation by Inoue, Koichi, Bizantsuteikoku no saigo, Tokyo: Hakusuisha, 2013.)
Harris, Jonathan, The Lost World of Byzantium, New Haven, Conn., and London, UK: Yale University Press, 2015. (Japanese translation by Inoue, Koichi, Bizantsuteikoku Seizonsenryaku no issennen, Tokyo: Hakusuisha, 2018.)
Heath, Ian, Angus McBride, Byzantine Armies 886–1118 (Men-at-Arms, 89), Oxford: Osprey Publications, 1979.(Japanese translation by Hiiragi, Shiori, Bizantinteikoku no guntai 886-1118 Romateikoku no keishousha, Tokyo: Shinkigensha, 2001.)
Jean-Claude Cheynet, Histoire de Byzance (Que sais-je ?), 6 éd., Paris:Presses Universitaires de France, 2023. (Japanese translation by Nezu, Yukio, Bizantsuteikoku no Rekishi (Bunko Kuseju), Tokyo: Hakusuisha, 2024).
Kaegi, Walter, Emil, “Two Notes on Heraclius”. In Revue des études byzantines, tome 37, 1979. pp. 221-227.
Kaldellis, Anthony, Streams of Gold, Rivers of Blood: The Rise and Fall of Byzantium, 955 A.D. to the First Crusade (Onassis Series in Hellenic Culture), New York: Oxford University Press, 2017.
Kaldellis, Anthony. The New Roman Empire: A History of Byzantium. New York: Oxford University Press, 2023.
Kazhdan, Alexander P, The Oxford Dictionary of Byzantium, New York: Oxford University Press, 1991.
Kobayashi, Isao, Umarekuru bummei to taijisurukoto: 7seiki Chichuukaisekai no aratana rekishizou [To confront the emerging civilization: A new perspective on Mediterranean history in the 7th century (MINERVA Western History Library)], Kyoto: Minerva Shobo, 2020.
Komatina, Predrag. “ON THE QUESTION OF THE BYZANTINE RULE IN CROATIA IN THE LATE 10TH AND EARLY 11TH CENTURY.” Историјски Часопис, no. 71, 2022: pp.11–34.
Kobayashi, Isao, Tamon Baba, (eds), Medieval History of Mediterranean World (Chichuukaisekai no chuuseishi), Kyoto: Minerva Shobo 2021.
Komnene, Anna, Yozo Aino (trans.), Alexiad, Tokyo: Yushokan, 2019.
Kreutz, Barbara M, Before the Normans: Southern Italy in the Ninth and Tenth Centuries, Philadelphia: University of Pennsylvania Press, 1991.
Lançon, Bertrand, Constantin (306-337) (Que sais-je?), Paris: Presses universitaires de France, 1998.(Japanese translation by Otsuki, Yasuhiro , Koutei Yustinianusu (Bunko Kuseju), Tokyo: Hakusuisha, 2005).
Matsumoto, Norio (eds.)Itariashi 1 Kodai Shokichuusei (Sekai Rekishi Taikei)[History of Italy 1 antiquity, Early Middle Ages(Compendium of World History)],Tokyo: Yamakawashuppannsha, 2021.
Maraval, Pierre, L’empereur Justinien (Que sais-je?), Paris: Universitaires de France, 1999. (Japanese translation by Oshimizu, Yutaka, Konsutantinusu: sono shougai to chisei (Bunko Kuseju), Tokyo: Hakusuisha, 2012).
Nakatani, Koji, Temahanran to Bizantsuteikoku: Konstantinoopruseifu to Chihoogundan (Theme Revolts and the Byzantine Empire: Government of Constantinople and the Provincial Army). Osaka: Osaka University Press, 2016.
Nezu, Yukio, Bizantsu gen’ei no sekaiteikoku [Byzantium The Phantom World Empire (Kodansha Anthology Mechie)], Tokyo: Kodansha, 1999.
Nezu, Yukio, Bizantsu no kokka to shakai [State and society in Byzantium(world history riblets)], Tokyo: Yamakawa Shuppansha, 2008.
Nezu, Yukio, Bizantsukizoku to kouteiseiken: Komunenosuchou shihaitaisei no seiritsukatei (Byzantine Aristocrats and the Imperial Government : Making of the Komnenian Regime), Tokyo: Sekaishisosha, 2012.
Ontiveros, Cau, Miguel Angel, & Enrico Zanini, The Insular System of early Byzantine Mediterranean, 2013, pp.31-45.
Porphyrogenitus, Constantine, Gyula Moravcsik, (ed.), De Administrando Imperio (Dumbarton Oaks Texts), Washington, D.C.: Dumbarton Oaks Center for Byzantine Studies, 1967.
Sakurai, Yasuto, Juujigunkokka (The Crusader State), Tokyo: Chikumashobo, 2023.
Scylitzes, John, John Wortley, (trans.), A Synopsis of Byzantine History, 811-1057: Translation and Notes, Port Hope On Canada: Cambridge University Press, 2010.
Shiba, Nobuhiro Barukanshi [History of the Balkans], Tokyo: Yamakawashuppannsha, 1998.
Shouju, Keitaro, Bizantsuteikokushi (The Byzantine Empire), Kanagawa: Tokai University Press, 1999.
Sluglett, Peter, Andrew Currie, Atlas of Islamic History, New York and London: Routledge, Taylor & Francis Group, 2014.
Thompson, E A, and Peter J Heather. The Huns. Hoboken, NJ.: Blackwell Publisher Inc., 1996.(Japanese translation by Kimura, Nobuyoshi, Hunzoku; Nazo no Kodaiteikoku no Kouboushi, Tokyo: Hosei University Press, 1999)
Treadgold, Warren, A History of the Byzantine State and Society, Stanford, Calif.: Stanford University Press, 1997.
Vasiliev, Alexander A., The Goths in the Crimea. Cambridge, MA: The Mediaeval Academy of America, 1936
Yamabe, Noriko, Norumankishi no Chichukai kouboushi, (History of the rise and fall of the Norman knights in the Mediterranean), Tokyo: Hakusuisha, 2009.