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Buku Teks
Edward Elgar , 1996
Buku Teks
Taylor and Francis, 1999
Buku Teks
edited by Robert L. Morris, John R. Miller
McGraw-Hill, 1984
Buku Teks
editor by Dabid A. Harris, Byron W. Engen and William E. Fitch
Van Nostrand Reinhold, 1991
Buku Teks