Smith, Richard L.
Prentice-Hall, 1962
Buku Teks
Murphy, Mary E., author
Van Nostrand Reinhold, 1963
Buku Teks
Moore, Carl L., author
South-Western Publishing, 1972
Buku Teks
Black, Homer A
Prentice-Hall, 1967
Buku Teks
edited by Mary A. Malina
Emerald, 2017
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