English: The proposed route of Austroasiatic and Austronesian migration into Indonesia and the geographic distribution of sites that have produced red-slipped (Austronesian) and cord-marked (Austroasiatic) pottery.

The Austroasiatic migration route began earlier than the Austronesian expansion, but later migrations of Austronesians resulted in the assimilation of the pre-Austronesian Austroasiatic populations.

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Simanjuntak, Truman (2017). "The Western Route Migration: A Second Probable Neolithic Diffusion to Indonesia". In Piper, Hirofumi Matsumura and David Bulbeck, Philip J.; Matsumura, Hirofumi; Bulbeck, David. New Perspectives in Southeast Asian and Pacific Prehistory. terra australis. 45. ANU Press. ISBN 9781760460952.