Elkins, William R., author
McGraw-Hill, 1982
Buku Teks
edited by Clement Semmler and Derek Whitelock
F.W. Cheshire, 1966
Buku Teks
Meisel, Perry, author
Routledge, 2007
Buku Teks
Kevin Romario, author
Fakultas Teknik Universitas Indonesia, 2017
UI - Skripsi (Membership)
Bradsher, Earl L.
The Columbia University Press, 1912
Buku Teks