edited by Chris Hale, Carolyn Boyle, Jo Moore
Globe Business, 2010
Buku Teks
Cooke, Darryl J., author
Sweet & Maxwell, 2011
Buku Teks
Engku Rabiah Adawiah Engku Ali, author
Cert Publication, 2010
Buku Teks
Lahsasna, Ahcene, author
Wiley, 2014
Buku Teks
Manurung, Sandra Christy, author
Universitas Indonesia, 2011
UI - Skripsi (Open)