Hazard, John N., author
Columbia University Press, 1960
Buku Teks
Burns, Russell W., author
Institution of Engineering and Technology, 2004
eBooks
Margaretha Noviera, author
Universitas Indonesia, 2007
UI - Tesis (Membership)
Ankori, Zvi
Buku Teks
Ankori, Zvi
Columbia University Press, 1959
Buku Teks