Hart, Andrew, author
Routledge, 1997
Buku Referensi
editor, Joseph F. Littell
McDougal, Littel and Company, 1976
Buku Teks
Routledge, 2022
eBooks
Macnamara, Jim, author
Mitra Media, 1999
Buku Teks
TIM LSPP
Lembaga Studi Pers dan Pembangunan, 2005
Buku Teks