JOHNSON, Todd M. ZURLO, Gina A. Christian Martyrdom as a Pervasive Phenomenon. In: Society. Published online, New York, v. 51, p. 679–685, Dez. 2014. Disponível em:<http://www.gordonconwell.edu/ockenga/research/documents/2Countingmartyrsmethodology.pdf>. Acesso em: 19/10/2017.