Jung, John, author
Sage Publ., 2010
Buku Teks
Jung, John
Sage Publications, 2000
Buku Teks
Jung, John, author
Sage Publications, 2001
Buku Teks
Jung, John
London : Sage, 2001,
Buku Teks
Jaffe, Jerome H., editor in chief
MacMillan Library Reference USA, 1995
Buku Referensi