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2016
UI - Tesis (Membership)
Alreck, Pamela L.
McGraw-Hill, 1995
Buku Teks
Rubright, Robert
An Aspen Publication, 1981
Buku Teks
Raudino, Simone, author
Palgrave Macmillan, 2016
Buku Teks
Delavignette, Robert Louis
Oxford University Press, 1950
Buku Teks