Carroll, John B., author
Prentice-Hall, 1964
Buku Teks
Williams, Howard
St.Maitin's Press, 1996
Buku Teks
Feinberg, Joel, author
Oxford University Press , 1984
Buku Teks
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2005
UI - Skripsi (Membership)
Heidegger, Martin, author
Harper & Row, 2001
Buku Teks