Weyl, Walter E.
N.Y. Harper & Row , 1964
Buku Teks
Creutzberg, Pieter, author
Wolters-Noordhoff, 1972
Buku Teks
Weil, David N., author
Pearsons Addison-Wesley, 2009
Buku Teks
Boulding, Kenneth E. (Kenneth Ewart), 1910-1993, author
Harper & Row, 1966
Buku Teks
Galbraith, John Kenneth, 1908-2006, author
Harvard University Press, 1964
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