Foss 1975, p. 725. Foss, Clive (1975). "The Persians in Asia Minor and the End of Antiquity". The English Historical Review. 90. Oxford University Press: 721–747. doi:10.1093/ehr/XC.CCCLVII.721.
Shahbazi 1989, pp. 180–182. Shahbazi, A. (1989). "Bestām O Bendôy". Encyclopaedia Iranica, Vol. IV, Fasc. 2. pp. 180–182. Archived from the original on 22 September 2013. Retrieved 13 August 2013.
Landau-Tasseron 1996. Landau-Tasseron, Ella (15 December 1996). "Ḏū Qār". Encyclopædia Iranica. Retrieved 8 January 2012.
Shahbazi 1989, pp. 180–182. Shahbazi, A. (1989). "Bestām O Bendôy". Encyclopaedia Iranica, Vol. IV, Fasc. 2. pp. 180–182. Archived from the original on 22 September 2013. Retrieved 13 August 2013.