edited by Rifaat Ahmed Abdel Karim, Simon Archer
John Wiley & Sons, 2013
Buku Teks
oleh Veithzal Rivai [and others]
Fakultas Ekonomika dan Bisnis UGM, 2012
Buku Teks
Sudin Haron
McGraw-Hill , 2009
Buku Teks
Krichene, Noureddine
John Wiley & Sons, 2013
Buku Teks
Ahmed Salahuddin
A.S. Noordeen, 2009
Buku Teks