edited by Michael Lewis and Suzanne M. Miller
Plenum Press, 1990
Buku Referensi
Dante Cicchetti, editor
Wiley , 2016
Buku Teks SO
Wenar, Charles, 1922-
McGraw-Hill, 2000
Buku Teks SO
Johnny L. Matson.
Springer , 2017
Buku Teks SO
Wenar, Charles, 1922-
McGraw-Hill , 1994
Buku Teks SO