1. Adams, F., & Webster, G. (1986). Hands Off! Hap-ki-do Self-defence for Women. Norwich: Jarrold.
2. Anonymous. (1909, December 18). The World of Women. Penny Illustrated Paper.
3. Anonymous. (1916, March 15). Women Police. A Demand for Official Recognition. The Times.
4. Atlas, R. I. (2008). 21st Century Security and CPTED: Designing for Critical Infrastructure Protection and Crime Prevention. Boca Raton, FL: Auerbach.
5. Barker-Benfield, G. J. (1992). The Culture of Sensibility: Sex and Society in Eighteenth-Century England. London: University of Chicago Press.