Perry, F. E.
Cox & Wyman Ltd, 1972
Buku Teks
Spate, Oskar Hermann Kristian, author
Oxford University Press, 1965
Buku Teks
Uff, John, author
Sweet & Maxwell, 1981
Buku Teks
Aldhira Pramantari, author
Universitas Indonesia, 2015
UI - Skripsi (Membership)
Vickery, B.G.
The Donnington Press, 1931
Buku Teks