Artikel Jurnal
edited by Sigmund Freud ; translated by K. Bertens
Gramedia, 2006
Buku Teks
K. Bertens, editor and translator
Gramedia Pustaka Utama, 2016
Buku Teks
Jacobs, Michael, author
Sage Publications, 2003
Buku Teks
edited by Paul Roazen
Prentice-Hall, 1989
Buku Teks