Venturini, V. G.
A.W.Sijthoff, 1971
Buku Teks
Feather, John
Library Association Publishing , 1996
Buku Teks SO
Owin
Universitas Indonesia, 2003
UI - Tesis Membership
Price, Charles Archibald
Australian Institute of International Affairs in association with Australian National University Press, 1974
Buku Teks
Nolan, Maura
Cambridge University Press, 2009
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