1986
Buku Teks
Brandt, Willy, author
Verlag Neue Gesellschaft , 1971
Buku Teks
Pauling, Linus, author
Jones and Bartlett Publishers, 2009
Buku Teks
edited by Theodora-Ismene Gizelis and Louise Olsson
Routledge, 2015
Buku Teks
Krieger, David, author
Middleway Press, 2002
Buku Teks