1. Adamu, Abdalla Uba. 2021. Islamic Calligraphy, Abstraction and Magic Talismans in Northern Nigeria. In The Palgrave Handbook of Islam in Africa, ed. Fallou Ngom, Mustafa H. Kurfi, and Toyin Falola, 303–336. Cham: Springer.
2. Appadurai, Arjun. 1986. The Social Life of Things: Commodities in Cultural Perspective. Cambridge: Cambridge University Press.
3. ———. 2006. The Thing Itself. Public Culture 18 (1): 15–21.
4. Baudrillard, Jean. [1968] 1996. The System of Objects. Trans. J. Benedict. London: Verso.
5. Bok, Sissela. 1984. Secrets: On the Ethics of Concealment and Revelation. Oxford: Oxford University Press.