Gaya APA
Rosenha, D, L., Seligman, M, E. (1989).
Abnormal Psychology (Ed.2).
USE,. New York London:
W.W Norton & Company.
Gaya MLA
Rosenha, David, L.., Seligman, Martin, E.P..
"Abnormal Psychology".
Ed.2
USE,. New York London:
W.W Norton & Company,
1989.
Buku PSI.