JTart Publishing & Media, 2012
Buku Referensi
Honnor, Sylvia, author
Arnold-Wheaton, 1986
Buku Teks
edited by Edward Mcchesney Sait
Hoghton Mifflin, 1950
Buku Teks
McKillop, Alan Dugald, author
University of Kansas Press, 1956
Buku Teks
Gwynn, Stephen, author
Macmillan, 1950
Buku Teks