edited by Linda M. Whiteford and Marilyn L. Poland
Westview Press, 1989
Buku Teks SO
Goleman, Daniel
Bantam Dell, 2006
Buku Teks SO
Brown, Theodore L.
Prentice-Hall, 2000
Buku Teks
Brown, Theodore L.
Prentice-Hall, 2000
Buku Teks
general editor: Thomas McCracken ; contributing editor: Richard Walker ; foreword: John F. Morris
Lustre Press, 1999
Buku Referensi