Ryder, John D. (John Douglas), author
Prentice-Hall, 1961-1969
Buku Teks
Bebbington, R.
Bernard Babani, 1995
Buku Teks
Penfold, R.A.
Bernard Babani, 1995
Buku Teks
Pederson, Donald O., author
McGraw-Hill, 1966
Buku Teks
Malvino, Albert Paul, author
Erlangga, 1984
Buku Teks