Lippincott, Isaac
Appleton Century Croffs, 1933
Buku Teks
Kemmerer, Donald L.
Littlefield, Adams, 1956
Buku Teks
Reischauer, Edwin O.
Alfred A. Knopf, 1968
Buku Teks
Fifield, Russell H.
Praeger , 1963
Buku Teks
Beard, Charles A.
Macmillan, 1957
Buku Teks