King, Gareth
Colloquial english : a complete english language course
Routledge, 2005
 Buku Teks
Bhatia, Tej K.
Colloquial Urdu : the complete course for beginners
Routledge, 2000
 Buku Teks
Sutanto Atmosumarto
Colloquial Indonesian: a complete language course
Routledge, 1994
 Buku Teks
Moore, John
Colloquial Thai : a complete language course
Routledge , 1994
 Buku Teks
Othman, Zaharah
Colloquial Malay : a complete language course Buch
Routledge, 1995
 Buku Teks