Djanasz, Suzanne C. De
McGraw Hil , 2012
Buku Teks
McIntosh, Perry
[American Management Association;, ], 2008
eBooks
Guirdham, Maureen
Prentice-Hall, 1996
Buku Teks
Stein-Parbury, Jane
Elsevier , 2005
Buku Teks
Koprowska, Juliet
Learning, Matters, 2005
Buku Teks