Walker، Joel (2007). "Iran and Its Neighbors in Late Antiquity: Art of the Sasanian Empire (224–642 C.E.)". American Journal of Archaeology. ج. 1 11 ع. 4: 797. DOI:10.3764/aja.111.4.795. ISSN:0002-9114. S2CID:192943660.
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Walker، Joel (2007). "Iran and Its Neighbors in Late Antiquity: Art of the Sasanian Empire (224–642 C.E.)". American Journal of Archaeology. ج. 1 11 ع. 4: 797. DOI:10.3764/aja.111.4.795. ISSN:0002-9114. S2CID:192943660.
Luttwak, Edward N. (2011). Grand Strategy of the Byzantine Empire. Belknap Harvard. ص. 52. ISBN:978-0674062078. OCLC:733913679.
Walker، Joel (2007). "Iran and Its Neighbors in Late Antiquity: Art of the Sasanian Empire (224–642 C.E.)". American Journal of Archaeology. ج. 1 11 ع. 4: 797. DOI:10.3764/aja.111.4.795. ISSN:0002-9114. S2CID:192943660.