Charles E. May, editor
Salem Press, 2011
Buku Teks
Hamalian, Leo
McGraw-Hill, 1967
Buku Teks
Weixlmann, Joe
Swallow Press, 1982
Buku Referensi
edited and translated by, Sigrid McLaughlin
Macmillan, 1989
Buku Teks
Harcourt, Brace & World, Inc., 1968
Buku Teks