Stanford university press, 1964
Buku Teks
translation by Arnold J. Toynbee
A Mentor Book, 1953
Buku Teks
Turner, Ralph, author
McGraw-Hill, 1941
Buku Teks
Janson, H.W.
Prentice-Hall, 1966
Buku Referensi
Haastert, H. F. W. M. van
Zuid-Nederlandsche Drukkerij, 1947
Buku Teks