1. Ngandong man: age and artifacts;Bartstra;J. Hum. Evol.,1988
2. Prehistory of the Indo-Malaysian Archipelago;Bellwood,1997
3. Upper Pleistocene human skull from Niah Caves, Sarawak;Brothwell;Sarawak Mus. J.,1960
4. Continuities in Southeast Asian evolution since the Late Pleistocene, unpublished M.A. thesis;Bulbeck,1981
5. Histoire du peuplement humain de l'Asie extrême-orientale depuis le Pléistocène supérieur récent, thèse;Demeter,2000