The European productivity agency of the organization for European Economi Cooperation, 1956
Buku Teks
Beckman, Theodore N., author
The Ronald Press, 1959
Buku Teks
Samosir, Debora Kristin, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Agoes Koesrijanto, author
Fakultas Teknik Universitas Indonesia, 2010
UI - Tesis (Open)
Ingo-Eric M.
London : k.C. Saur Munchen, 1981,
Buku Referensi