Tong, Keith S. T.
Colloquial Cantonese : a complete English course
Routledge, 1994
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Baker, Hugh D. R.
Complete Cantonese
Teach Yourself , 2015
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SamPaio, Joao
Colloquial Portuguese : a complete language course / Joao Sampaio and Barbara McIntyre
Routledge, 1995
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Bhatia, Tej K.
Colloquial Urdu : the complete course for beginners
Routledge, 2000
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Vuoang, Tuan Duc
Colloquial Vietnamese: a complete languange course/ Tuan Duc Vuong and John More
Routledge , 1994
Buku Teks