Graham, Peter
Blackwell Scientific Publications, 2003
Buku Teks SO
texts by Ernst J. Grube ... [et al.] ; edited by George Michell
Thames and Hudson, 1995
Buku Teks SO
Agus Arif Algahara
Fakultas Teknik Universitas Indonesia, 1999
UI - Skripsi Membership
by Ernst J. Grube ... [et al.] ; edited by George Michell
Thames & Hudson, 1987
Buku Teks SO
Husein, Umme Salma Mujtaba
Business Expert Press, 2014
Buku Teks