Berlitz, Charles
Without a trace
Granada Publishing, 1977
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Timerman, Jacobo
Prisoner without a name, cell without a number
Vintage Books , 1982
 Buku Teks SO
Johnson, Allan G.
Social statistics without tears
McGraw-Hil, 1997
 Buku Teks SO
Auerbach, Jerold S.
Justice without law
Oxford University Press, 1983
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Muhammad Yunus
Creating world without poverty
Gramedia pustaka utama, 2008
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