Westin, Alan F., author
Macmillan, 1958
Buku Teks
Tiffany Wirintia Christie, author
Fakultas Teknik Universitas Indonesia, 2017
UI - Skripsi (Membership)
Nippon Steel Corporation, [date of publication not identified]
Buku Referensi
Stone, Geoffrey R.
Little, Brown and Company, 1991
Buku Teks
Wade, E. C. S. (Emlyn Capel Stewart), author
Longmans Green, 1951
Buku Teks