[en] Reckonings, Numerals, Cognition, and History MIT Press
[en] Realm of Numbers Gollancz
[en] Worried Sick · a Prescription for Health in an Overtreated America Chapel Hill : University of North Carolina Press, c2008.
[en] Base-12 Numerology Llewellyn Publications
[en] [The Heart of Hidden Reality 01] • Love and Math Basic Books