Alberami
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2006
UI - Tesis (Membership)
Vagadia, Bharat
[Springer, ], 2012
eBooks
Saragih, Wifajar
2003
UI - Tesis (Membership)
Gay, Charles L.
Nicholas Brealey Pub, 2000
Buku Teks
Linder, Jane C.
Amacon, 2004
Buku Teks