Lane, Henry W., 1942-
Blackwell, 1997
Buku Teks
by Donald A. Ball ... [and others]
McGraw-Hill Irwin, 2002
Buku Teks
Ball, Donald A.
Irwin McGraw-Hill, 1999
Buku Teks
Michael R. Czinkota, Ronkainen Ilkka A., Michael H.Moffett, Eugene O. Moynihan, ... [et al.].
Harcourt College publishers, 2001
Buku Teks
Marquardt, Michael J.
Richard D. Irwin, 1994
Buku Teks