Lobo, V.M.M.
Elsevier, 1989
Buku Referensi
Malseed, Roger, author
J.B. Lippincott , 1995
Buku Teks
Sannwald, William W., author
[American Management Association;, ], 2009
eBooks
Martin, James, author
John Wiley & Sons, 1996
Buku Teks
Givoni, Baruch, author
John Wiley & Sons, 1998
Buku Teks