Bryson, John, author
Longman, Green, 1959
Buku Teks
Browning, Robert, author
Cassell, 1907
Buku Teks
Hitner, John Meigs, author
Northern Michigan University Press, 1969
Buku Teks
Rayssa Amaliadynta, author
Universitas Indonesia, 2017
UI - Skripsi (Membership)
Garrow, H. W.
The Clarendon press, 1939
Buku Teks