Электронный ресурс (аналит. описание)

Bakir, Abdullah.
The Strategic Importance Of Apollonia/Sozopolis City In Byzantyne Period And Its Conquest By The Seljuqs [Электронный ресурс] / A. Bakir // Yilmaz
Research and development on social sciences / R. Yilmaz, M. A. Icbay, H. Arslan; International assoc. of social science research (IASSR). – Электрон. кн. – Bialystok, 2017. – С. 93-103.