Sundberg Baudot, Barbara
[publisher not identified], [date of publication not identified]
Buku Teks
Brierley, Sean, 1966-, author
Routledge, 1995
Buku Referensi
Stansfield, Richard H., author
The Dartnell Corporation, 1985
Buku Teks
Shintaro Okazaki, editor
Edward Elgar, 2012
Buku Teks
Carlsnaes, Walter, author
Nusa Media, 2013
Buku Referensi