Wheeler, Geoffrey
Oxford University Press, 1962
Buku Teks
Kemper, Michael, edited, Motika, Raoul, edited, Reichmuth, Stefan, edited
Routledge, 2010
Buku Teks
Bryant, Peter, 1937-
Blackwell, 1985
Buku Teks
edited by J. C. M. M Moonen, H.E. Wuite-Harmsma
North-Holland, 1984
Buku Teks
Holzman, Franklyn D.
Harvard University Press, 1962
Buku Teks