Kettell, Brian
John Wiley & Sons, 2010
Buku Teks
Kettell, Brian
Wiley, 2010
Buku Teks
Holden, Greg
American Management Association, 2006
eBooks
Japan Information Center consulat General of Japan at New York, 1988
Buku Teks
Muhammad Merril Liansyah
Fakultas Teknik Universitas Indonesia, 2022
UI - Skripsi (Membership)