Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1976
UI - Skripsi (Membership)
Fry, Peter Somerset, author
Routledge , 2001
Buku Teks
Garland Publishing, Inc, 1996
Buku Teks
Taylor, Alice, author
Oxford University Press, 2016
eBooks
Mackintosh, Chaerles Rennie, author
The Foulis Press, 1995
Buku Teks