Donzel, E. J. v., Schmidt, A. B., & Ott, C. (2010). Gog and Magog in early eastern Christian and Islamic sources: Sallam's quest for Alexander's wall. Brill.

Donzel, E. J. van, Andrea B. Schmidt, and Claudia Ott. Gog and Magog in Early Eastern Christian and Islamic Sources: Sallam's Quest for Alexander's Wall. Leiden ; Boston: Brill, 2010.

Donzel, E. J. van, et al. Gog and Magog in Early Eastern Christian and Islamic Sources: Sallam's Quest for Alexander's Wall. Brill, 2010.