edited by Robert Chapman and Keith Sinclair
Pauls Book Arcade for the University of Auckland, 1963
Buku Teks SO
Geest, Wim de
Foris Publications, 1989
Buku Teks
edited by Willy Sellekaerts
Macmillan, 1974
Buku Teks
edited by P.M.S. Hacker and J. Raz
Clarendon Press, 1988
Buku Teks
Cowen, Zelman
Butteworths, 1983
Buku Teks