The Institute for Research and Community Service ITB, 2008
Majalah, Jurnal, Buletin
The institute for research and community services, ITB, 2007
Majalah, Jurnal, Buletin
The Institute for Research and Community Service ITB, 2007
Majalah, Jurnal, Buletin
Putranto
1998
UI - Tesis Membership
Donovan, John J.
Prentice-Hall, 1994
Buku Teks SO