Novi Romauli
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi Membership
Dittrich, Guy, editor
teNeues, 2006
Buku Referensi
edited by martin Nicholas Kunz
teNeues, 2003
Buku Teks SO
edited by Haike Felkenberg
teNeues, 2002
Buku Teks SO
Ypma, Herbert
Thames & Hudson, 1999
Buku Referensi