Horne, Donald, author
Penguin Books, 1976
Buku Teks
Horne, Donald, author
Penguin Books, 1967
Buku Teks
Jemmy Helmi Berlian, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1999
UI - Skripsi (Membership)
Watt, Alan, author
Sydney Angus and Robertson 1972
Buku Teks
McGillick, Paul
Amsterdam Rodopi 1988
Buku Teks