Adler, Patricia A.
Wadsworth, 2000
Buku Teks SO
edited by, Ronald A. Farell and Victoria Lynn Swiger
J.B.Lippincott, 1975
Buku Teks SO
Suchar, Charles S.
Holt, Rinehart and Winston, 1978
Buku Teks SO
Barker, Thomas
Cipta Manunggal, 1999
Buku Teks
Inderbitzin, Michelle Lee
SAGE, 2015
Buku Teks