Jelaskan Rujukan dari Ngajat Atas Tawak dalam bahasa melayu

Iban Adat and Augury, Benedict Sandin, Penerbit Universiti Sains Malaysia for School of Comparative Social Sciences, 1980 - Divination - 151 pages

Gawai Kelingkang: A Dayak Cultural Festival In Defence of Ancestral Lands