Weber, Max, 1864-1920, author
Transaction Publishers, 2011
Buku Teks
Lior Gideon
Springer Science, 2012
eBooks
Jackson, Michael C., author
Plenum Press, 1991
Buku Teks
McGraw-Hill, 1971
Buku Teks
Sjoberg, Gideon
Harper & Row Publishers, 1968
Buku Teks