edited by Oliva Blanchette, Tomonobu Imamich and George F. McLean
Council for Research in Values and Philosophy, 2001
Buku Teks SO
editor, Alin Tat and Stefan Popenici
Council for Research in Values and Philosophy, 2008
Buku Teks
[, Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia], 2013
UI - Makalah dan Kertas Kerja
Barnes, Winston H.F.
Adam & Charles Black, 1950
Buku Teks SO
Langer, Susanne K.
John Hopkins Press, 1964
Buku Teks SO