Gregg, Pauline
George G. Harrap, 1967
Buku Teks
Acton, Edward
Longman, 1986
Buku Teks
edited by Stephanie Abraham Hirsh and Philip Bacon
Harcourt Brace Jovanovich, 1988
Buku Teks
Reischauer, Edwin O.
Alfred A. Knopf, 1964
Buku Teks
edited by Rowena Keith Keyes and Helen M. Roth
Noble and Noble, 1957
Buku Teks