Trevithick, Pamela, author
McGraw-Hill , 2012
Buku Teks
Parris, Melanie, author
McGraw-Hill, 2012
Buku Teks
Smith, Michael J., author
Oxford University Press, 2010
Buku Teks
edited by P.J.D. Drenth ... [and others]
John Wiley & Sons, 1984
Buku Referensi
Usman Manor, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Tesis (Membership)