Reference 1: Cantonese, Teochew, Hoklo (Hokkien), Hakka, Hainanese and Others.
Reference 2: 1924, 1950, 1974 and 1989.
Source: http://en.wikipedia.org/wiki/Hoa_people
Reference 2: 1924, 1950, 1974 and 1989.
Source: http://en.wikipedia.org/wiki/Hoa_people