Durbin, John R.
John Wiley & Sons, 1979
Buku Teks
Whitesitt, J. Eldon
Addison-Wesley, 1972
Buku Teks
Smith, Jonathan D.H.
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Barnes, Wilfred E.
D. C. Hearth, 1963
Buku Teks
Whitelaw, Thomas A.
Blackie Academic & Professional, 1995
Buku Teks SO