Coggle, Paul
German complete course for beginners
Teach Youeself Books, 1991
Buku Teks
Coggle, Paul
Complete German, volume 2 = Teach yourself German
Kesaint Blanc, 2011
Buku Teks
McKeane, Alasdair
German
Longman, 1994
Buku Teks
Bellow's German dictionary German - English, English - German
London, London Longmans
Buku Referensi
Wessels, Dieter
Business German
Macmillan, 1992
Buku Teks