Lary, Diana
Cambridge University Press, 2007
Buku Teks
Haura Marjorie Herbayuning
2018
UI - Makalah dan Kertas Kerja
The Goverment Information Office, 2009
Buku Referensi
The Government Information Office, 1999
Buku Referensi
The Government Informaation Office , 1998
Buku Referensi