There are maybe still discussions about the classification of Dadu'a but since Glottolog has a code for it, it would be better to use it. So far Dadu'a is probably very likely Wetarese.
Taylor-Leech 2009 'The language situation in Timor-Leste'
Taylor-Leech 2007 'The Ecology of Language Planning in Timor-Leste: A Study of Language Policy, Planning and Practices in Identity Construction'
and others
SimonGreenhill
commented
2 years ago
https://github.com/lexibank/abvd/blob/master/cldf/languages.csv#L2861
There are maybe still discussions about the classification of Dadu'a but since Glottolog has a code for it, it would be better to use it. So far Dadu'a is probably very likely Wetarese.
see:
https://glottolog.org/resource/languoid/id/dadu1237