O`Connor, Patrick J.
Prentice-Hall, 1983
Buku Teks SO
Oleksy, Jerome E.
Prentice-Hall, 1981
Buku Teks
Cave, Frank E.
Reston Publishing, 1981
Buku Teks
Nashelsky, Louis
John Wiley & Sons, 1977
Buku Teks SO
Donatella Castelli; Bolette Ammitzboll Jurik; Joan Lippincott, editor
Springer, 2008
Buku Teks SO