Lubis, Todung Mulya, author
Gramedia Pustaka Utama, 1993
Buku Teks
Mullerson, Rein
Routledge, 1997
Buku Teks
Buku Teks
Andrew Ashworth, Alison Macdonald, Ben Emmerson
Sweet & Maxwell , 2012
Buku Teks
Forsythe, David P., 1941-, author
Cambridge University Press, 2012
Buku Teks