Johanson, Elaine
Westview Press, 1984
Buku Teks
Delia Dintana, author
Fakultas Ekonomi Dan Bisnis Universitas Indonesia, 2020
UI - Skripsi (Membership)
Farrell, Warren, author
[American Management Association, ], 2005
eBooks
Ryan, William
Vintage Books, 1982
Buku Teks
Fakultas Teknik Universitas Indonesia, 1992
UI - Skripsi (Membership)