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Buku Teks
Schippers, Birgit, author
Routledge, 2014
Buku Teks
Anisa Humairoh, author
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2020
UI - Tesis (Membership)
Lasswell, Harold D.
Routledge & Kegan Paul Ltd., 1949
Buku Teks
edited by John Mohan
Oxford University Press, 1999
Buku Teks