Goleman, Daniel, author
Bantam Books, 2006
Buku Teks
Goleman, Daniel, author
Bantam Dell, 2006
Buku Teks
Brown, Theodore L., author
Prentice-Hall, 2000
Buku Teks
Brown, Theodore L., author
Prentice-Hall, 2000
Buku Teks
Westview Press , 1989
Buku Teks