Tong, Keith S.T.
Colloquial Cantonese : a complete English course
Routledge, 1994
Buku Teks SO
Sampaio, João, 1929-
Colloquial Portuguese : a complete language course
Routledge, 1995
Buku Teks SO
Le Fleming, Svetlana
Colloquial Russian: a complete language course
Routledge, 1995
Buku Teks SO
Sutanto Atmosumarto
Colloquial Indonesian: a complete language course
Routledge, 1994
Buku Teks SO
Moore, John
Colloquial Thai : a complete language course
Routledge , 1994
Buku Teks SO