Stoer, Josef
Springer-Verlag, 1993
Buku Teks SO
Atkinson, Kendall E.
John Wiley & Sons, 1978
Buku Teks SO
Froberg, Carl-Erik
Addison-Wesley, 1972
Buku Teks SO
Atkinson, Kendall E.
John Wiley & Sons, 2001
Buku Teks SO
Bradie, Brian
Pearson/Prentice Hall, 2006
Buku Teks SO