Christie, Alexander. “Remarks on the Occurrence of Ornamentation of a Byzantine Character on Weapons and Wooden Implements, Made by the Natives of an African Tribe, on the Coast of the Red Sea”. Proceedings of the Society of Antiquaries of Scotland 1 (November 30, 1852): 91. Accessed April 20, 2024. https://journals.socantscot.org/index.php/psas/article/view/3927.