Mill, John Stuart
Longmans, Green and Co., 1949
Buku Teks
Ahlswede, Rudolf, author
Springer Nature, 2019
eBooks
Mikhlin, S.G., author
Sijthoff & Noordhoff, 1979
Buku Teks
Meek, John L., author
E and FN Spon, 1991
Buku Teks
Souza-Santos, Marcio L. de, author
CRC Press, 2007
Buku Teks