Bhatia, Tej K.
Colloquial Urdu : the complete course for beginners
Routledge, 2000
 Buku Teks
Peck, Anthony
Mastering German / Anthony Peck
MacMillan,, 1995
 Buku Teks
Graham, Gaelle
French : a complete course for beginners / Gaelle Graham
Hodder & Stoughton, 1991
 Buku Teks
Bruce, R. Robert
Cantonese complete course for beginners
Hodder & Stoughton, 1994
 Buku Teks
Wilkes, Angela
German for beginners
Chicago: A Division of NTC Pub., 1987,
 Buku Referensi