Tong, Keith S.T.
Colloquial Cantonese : a complete English course
Routledge, 1994
Buku Teks SO
Coggle, Paul
German complete course for beginners
Teach Youeself Books, 1991
Buku Teks SO
Coultas, Barbara
Business French : a complete course for beginners
Teach Yourself Books, 1990
Buku Teks SO
Bhatia, Tej K.
Colloquial Urdu : the complete course for beginners
Routledge, 2000
Buku Teks SO
Baker, Hugh D. R.
Complete Cantonese
Teach Yourself , 2015
Buku Teks