Griffith, J. Gwyn (1971). “'Arepo' in the Magic 'Sator' Square”. The Classical Review (Cambridge University Press (CUP)) 21 (1): 6–8. doi:10.1017/s0009840x00262999. ISSN0009-840X.
Griffith, J. Gwyn (1971). “'Arepo' in the Magic 'Sator' Square”. The Classical Review (Cambridge University Press (CUP)) 21 (1): 6–8. doi:10.1017/s0009840x00262999. ISSN0009-840X.