Alimizar Ariyoga, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Skripsi (Open)
Daly, Frederick Michael
Melbourne Sun Books 1978
Buku Teks
Aitkin, Donald Alexander, author
Australian National University Press, 1982
Buku Teks
Situmorang, Estherlita Amelia, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1993
UI - Skripsi (Membership)
Australia : The Australian Institute Politica Sciencel, {s.a}
Majalah, Jurnal, Buletin