Grangen, Clive William John, 1934-, author
Academic Press, 1989
Buku Teks
Robinson, Colin, author
Nelson, 1971
Buku Teks
Dauten, Carl Anton, 1913-, author
South-Western Publishing, 1978
Buku Teks
Valentine, Lloyd M., author
South-Western Publishing, 1991
Buku Teks
edited by Kenneth D. Lawrence, Ronald K. Klimberg
Emerald, 2016
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