>>212819418https://www.jstor.org/stable/40387209?seq=1#page_scan_tab_contents
https://theconversation.com/we-mapped-the-super-highways-the-first-australians-used-to-cross-the-ancient-land-154263
Here's two to get you started. There's also been strong DNA connection to them being descendants of Indians and nearby Indonesians, which makes sense considering the proximity of both places and some old boats that have been found.