Some articles on nhangu:

Yan-nhangu Language - Language and Speakers - History and Culture
... Yan-nhangu people own an area of the Arafura sea and thirty one islands of just under 10,000 square kilometres (3,900 sq mi) ... mer) changed the timings and patterns of Yan-nhangu people's seasonal movements around the Crocodile Islands ... Before colonization, the number of Yan-nhangu people remained small, just a few hundred, with no more than fifty or so people belonging to each of the six clans (bapurru) ...