edited by Bryant W. Rossiter
John Wiley & Sons, 1980
Buku Teks
Millar, David I. A., author
Springer, 2012
eBooks
Edwin Ramadhani Fatchudin, author
Fakultas Teknik Universitas Indonesia, 2004
UI - Skripsi (Membership)
Unescco, 1973
Buku Teks
Back, Kurt W.
1969
Buku Teks