Ingram, Robert W., author
American Accounting Assiciation , 1980
Buku Teks
Shoenfield, Joseph R.
Springer-Verlag, 1993
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Protherough, Robert
Open University Press, 1991
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Plamenatz, John
National News-Letter, 1949
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Friedman, Lawrence M., 1930-, author
Harvard University Press, 1990
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