Bambang Kesowo, author
Sekretariat Negara Republik Indonesia, 1994
Buku Teks
Head, John W., author
FH UI, 2006
Buku Teks
Head, John W., author
ELIPS, 1997
Buku Teks
Head, John W., author
ELIPS, 2002
Buku Teks
Sudaryanto, author
Gadjah Mada University Press, 1992
Buku Teks