Loss, Louis
Little, Brown , 1988
Buku Teks
Dewing, Arthur Stone
The Ronald Press Company, 1953
Buku Teks
Krow, Harvey A.
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Buku Teks
Haas, Jeffrey J., author
West A Thomson Reuters Busines, 2011
Buku Teks
Posner, Richard A., author
Litle, Brown, 1980
Buku Teks