Martin, Samuel E.
Essential Japanese an introduction to the standard colloquial language /by Samuel E. Martin
Tuttle Company, 1956
 Buku Teks
Colloquial Korean
 Buku Teks
Renier, Fernand G.
Colloquial Dutch
Routledge, 1986
 Buku Teks
Coe, Graham
Colloquial English
Routledge & Kegan Paul, 2005
 Multimedia
Coe, Graham
Colloquial English
Routledge & Kegan Paul, 2005
 Multimedia