1. Brink, D. (1989). Moral realism and the foundations of ethics. Cambridge: CUP.
2. Chang, R. (1997). Introduction. In R. Chang (Ed.), Incommensurability, incomparability, and practical reason. Cambridge: Harvard University Press.
3. Chrisman, M. (2010). From epistemic expressivism to epistemic inferentialism. In D. Haddock, A. Millar, & A. Pritchard (Eds.), Social Epistemology. Cambridge: OUP.
4. Cuneo, T. (2007). The normative web. New York: OUP.
5. Darwall, S. (2003). Moore, normativity, and intrinsic value. Ethics, 113, 463–489.