Jelaskan Rujuakan dari Urang Bunak dalam bahasa minangkabau

Louis Berthe, 1972 Bei Gua: Itinéraire des ancêtres, Paris.

Claudine Friedberg, Boiled Woman and Broiled Man: Myths and Agricultural Rituals of the Bunaq of Central Timor, in - Edited James J. Fox (Editor) 1980, The Flow of Life. Essays on Eastern Indonesia, Harvard University Press.