Morrison, John
This freedom
Penguin Books, 1985
 Buku Teks
Mendrofa, James Farlow
Eksistensialisme naturalistik: kajian perspektif naturalistik terhadap konsep eksistensialisme mengenai kebebasan dan faktisitas = Naturalistic existentialism: naturalistic perspective on the concepts of freedom and facticity of existentialism
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2011
 UI - Tesis Open
The future of freedom
Indian Committee for Cultural Freedom, 1999
 Buku Teks
Sen, Amartya, 1933-
Development as freedom
Anchor Books, 1999
 Buku Teks
Steinby, Torsten
In Quest of freedom
Government, 1971
 Buku Teks