Suharno
Djambatan, 2003
Buku Teks
Sitompul, Zulkarnain
[publisher not identified], [date of publication not identified]
Buku Teks
Artikel Jurnal
Bambang Hermanto
2002
Artikel Jurnal
Sri Dini Indarini
Universitas Indonesia, 2005
UI - Tesis (Membership)