Boss, Suzie, author
ISTE (International Society for technology in education), 2007
Buku Teks
edited by Philip Riley
Longman, 1985
Buku Teks
Ade Husnul Rohmatun, author
Sekolah Kajian Stratejik dan Global Universitas Indonesia, 2010
UI - Tesis (Open)
Artikel Jurnal
Champion, R.A.
John Wiley & Sons Australia , 1969
Buku Teks