Wojciechowski, Jerzy A.
Council for research in values and philosophy, [Date of publication not identified]
Buku Teks SO
penerjemah, Jujun S. Suriasumantri
Yayasan Obor Indonesia, 2001
Buku Teks
penyunting, C.A. Qadir; penerjemah, Bosco Carvallo, Sonny Keraf A. dan Adre Ata Ujan
Yayasan Obor Indonesia, 1995
Buku Teks SO
Medawar, P.B.
Yayasan Obor Indonesia, 1990
Buku Teks SO
Morton, Adam
Blackwell, 1997
Buku Teks SO