edited by Kwesi Owusu
Routledge , 2000
Buku Teks SO
Kearns, Francis E.
Holt, Rinehart and Winston, 1970
Buku Teks SO
edited with introductions by Michael Bromley, Tom O'Malley
Routledge , 1997
Buku Teks SO
Fjeldstad, Mary C.
Harcourt Brace College Publisher, 1998
Buku Teks
David J. Whittaker
Routledge, 2001
Buku Teks