Bache, William B., author
Peter Lang, 1991
Buku Teks
M. Monty Arief, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1995
UI - Skripsi (Membership)
edited by Jonathan Bate and Russell Jackson
Oxford University Press, 1996
Buku Teks
Clarke, D. Waldo, author
Longmans, Green, 1950
Buku Teks
Berry, Ralph, author
Croom Helm, [date of publication not identified]
Buku Teks