Fadden, Arthur Sir
The Jacaranda Press, 969
Buku Teks
Moss, John George
NC Press, 1983
Buku Teks
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1970
UI - Skripsi (Membership)
Henry, Nancy, author
Cambridge University Press, 2008
eBooks
Palleren, M.L.
Grusset, 1953
Buku Teks