Leick, Gwendolyn
Routledge, 1999
Buku Referensi
Soden, Wolfram von, 1908-
W.B. Eerdmans, 1994
Buku Teks SO
Jack M. Sasson, Johan Baines, Gary Beckman, Karen S. Rubinson, editor
Charles Scribner's Sons, 1995
Buku Referensi
edited by Jack M. Sasson
Simon & Schuster, 1995
Buku Teks
Kuhrt, Amelie, 1944-
Routledge, 2009
Buku Teks SO