edited by Francesca Ippolito, Maria Eugenia Bartoloni, Massimo Condinanzi
Routledge, 2019
Buku Teks
Universitas Indonesia, 2005
UI - Skripsi (Membership)
Wendt, Gerald
Balai Pustaka, T.t.
Buku Teks
Macmillan Press , 1998
Buku Teks
Universitas Indonesia, 2002
UI - Skripsi (Membership)