Universitas Indonesia, 2009
UI - Skripsi (Open)
Mitchell, Barry, author
Macmillan, 1990
Buku Teks
M. Hanafi Asmawie, author
Pradnya Paramita, 1985
Buku Teks
Panjaitan, Petrus Irwan, 1958-, author
IHC, 2008
Buku Teks
[Universitas Indonesia, ], 2004
UI - Skripsi (Membership)