Laurence, D.R., author
Churchill Livingstone, 1997
Buku Teks
Sasanto Wibisono, author
UI-Press, 1998
UI - Pidato
Dadang Hawari, author
UI-Press, 1993
UI - Pidato
Jossey-Bass Publishers, 1994
Buku Teks
Rodman, Morton J., author
J.B. Lippincott, 1984
Buku Teks