The Bulgars and the Steppe Empire in the Early Middle Ages. The Problem of the Others By Tsvetelin Stepanov 2005 | 192 Pages | ISBN: 900418001X | PDF | 6 MB
Robert G. Hoyland, "In God's Path: The Arab Conquests and the Creation of an Islamic Empire (Ancient Warfare and Civilization)" ISBN: 0199916365, 0190618574 | 2014 | EPUB | 320 pages | 13 MB
In God's Path: The Arab Conquests and the Creation of an Islamic Empire by Robert G. Hoyland, Peter Ganim, Audible Studios English | 2014 | ISBN: B00QQRBNDO | Format: MP3 / Bitrate: 128 Kbps / 9 hours and 54 minutes | 408 Mb
Jonathan Shepard, "Muslims on the Volga in the Viking Age: In the Footsteps of Ibn Fadlan (Library of Medieval Studies) " English | ISBN: 1784539333 | 2023 | 440 pages | PDF | 47 MB