Routledge, 2018
Buku Teks SO
edited by Susan L. Feagin and Patrick Mayhard
Oxford University Press, 1997
Buku Teks SO
Ember, Carol R.
Prentice-Hall, 1985
Buku Teks SO
Haviland, William A.
Rinehart and Winston, 1974
Buku Teks SO
edited by Allan H. Smith and John L. Fischer
Prentice-Hall, 1970
Buku Teks SO