British Institute of Management , 1951
Buku Teks
Eilon, Samuel, author
Macmillan, 1962
Buku Teks
White, Kendall C., author
Alexander Hamilton Institute, 1962
Buku Teks
by C. Canby Balderston ... [et al.]
Prentice-Hall, 1956
Buku Teks
Hendra Suherman, author
Fakultas Teknik Universitas Indonesia, 1999
UI - Tesis (Membership)