Hellman, Richard, author
Lexington Books, 1982
Buku Teks
Wood, Janet, author
Institution of Engineering and Technology, 2007
eBooks
Raa, Thijs Ten, author
Harvester Wheatsheaf, 1995
Buku Teks
Hitch, Charles J., author
Harvard University Press, 1961
Buku Teks
Hitch, Charles J., author
Harvard University Press, 1963
Buku Teks