Eide, Arvid R.
McGraw-Hill, 2002
Buku Teks
Ghezzi, Carlo
Prentice Hall International, 1991
Buku Teks
Rizzoni, Giorgio
McGraw-Hill, 2009
Buku Teks
Papacostas, C. S.
Prentice-Hall, 1987
Buku Teks
Levinson, L.
Peace Publishers, [date of publication not identified]
Buku Teks