Lowe, P. H.
Pan Books, 1970
Buku Teks
Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1987
Buku Teks
Goetsch, David L., author
Prentice-Hall, 1997
Buku Teks
Selvy Yanti, author
2000
UI - Skripsi Membership
Fakultas Teknik Universitas Indonesia, 2000
UI - Skripsi Membership