Preston, Antony, author
Chancellor Press , 1999
Buku Referensi
Preston, Antony
London: Chancellor, 1999,
Buku Referensi
Sulistyanto, author
Gramedia Pustaka Utama - M&C, 2019
UI - Publikasi
CounterTop Software, 2000
Multimedia
edited by John Keegan
Viking, 1999
Buku Teks