Tolong jelaskan mengenai Angolifa nösi dari Ovasa: Feasts of merit in Nias dalam bahasa nias

Factors determining size of prestige payments

Entering the system of prestige payments

Status and the politics of feasting

Andrew Beatty, Ovasa: Feasts of merit in Nias bakha ba Bijdragen tot de taal-, land- en volkenkunde 147 (1991), nga'örö 216-235. ()

Andrew Beatty, After the Ancestors. An Anthropologist's Story, Cambridge University Press, 2015. ()