edited by Graham Douglas, Fiona Nicol, Colin Robertson
Elsevier, 2005
Buku Teks
Elsa Austin W., author
UI - Skripsi (Membership)
Philip D. Welsby, editor; Sandy Qlintang, translator
EGC, 2009
Buku Teks
Jarvis, Carolyn
Elsiver Saunder, 2012
Buku Teks
Euromonitor, 1989
Buku Teks