- A History of the Later Roman Empire, AD 284-641: The Transformation of the Ancient World (Blackwell History of the Ancient World)
- Anatolia: Land, Men, and Gods in Asia Minor Volume II: The Rise of the Church
- Cremna in Pisidia : An Ancient City in Peace and in War
- Roman Archaeology in a South Anatolian Landscape: The Via Sebaste, The Mansio in the Döseme Bogazi, and Regional Transhumance in Pamphylia and Pisidia. With a Catalogue of Late Roman and Ottoman Ciste
- Regional Epigraphic Catalogues of Asia Minor II: The Ankara District, the Inscriptions of North Galatia