Cady, John F.
Prentice-Hall, 1966
Buku Teks
Dwiyoga Subarkah, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Skripsi (Open)
Dan Landis, Rosita D. Albert, editor
[Springer, ], 2012
eBooks
Callahan, Mary P
ISEAS, 2007
Buku Teks
Hall, D.G.E.
London, Hutahinson University Library, (1960)
Buku Teks