Goldman, Alvin I.
MIT Press, 1993
Buku Teks SO
edited by Herbert Morris
Stanford University Press, 1961
Buku Teks SO
edited by James L. Jarrett and Sterling M. McMurrin
Henry Holt, 1954
Buku Teks SO
Abel, Donald C, 1952-
McGraw - Hill , 2012
Buku Teks SO
Christensen, Kit R.
McGraw-Hill, 2002
Buku Teks