Weber, Janet
J.B. Lippincott, 2001
Buku Teks
edited by Diana Odell Potter
Springhouse, 1985
Buku Teks
Groth-Marnat, Gary
John Wiley & Sons, 1990
Buku Referensi
edited by Curtiss P. Hansen and Kelley A. Conrad
Quorum Books , 1991
Buku Referensi
Groth-Marnat, Gary
John Wiley & Sons, 2016
Buku Teks