Feldman, Robert Alan
MIT Press, 1986
Buku Teks
Cambridge University Press, 2019
eBooks
Malau, Christoffel
Universitas Indonesia, 2013
UI - Tesis Membership
edited by Muhammad Zulkhibri, Abdul Gafar Ismail
Palgrave Macmillan, 2017
Buku Teks
Artikel Jurnal