Gunton, George
Trusts and the public/George Gunto
Appelton and Company , 1899
 Buku Teks
Stocking, George W.
Cartels or competition The economics of international controls by business and government
The Twentieth Century Fund, 1948
 Buku Teks
Monopoly power and economic performance : the problem of industrial concentration
edited by Edwin Mansfield
W.W. Norton, 1964
 Buku Teks
Machlup, Fritz
The political economiy of monopoly business, labor and government policies/ Fritz Machlup
The Johns Hopkins Press, 1952
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Hirst, Francis W.
Monopolies, trusts and kartells / by Francis W. Hirst
E.P. Dutton & Co , 1906
 Buku Teks