Gebser, Martin, author
Morgan et Claypool, 2013
Buku Teks
edited by Manja Ismail, Khairil Annas Jusoh, Mazri Muhammad
Institut Terjemahan Negara Malaysia, 2010
Buku Teks
Jeroen Janssen, editor
Atlantis Press, 2012
eBooks
Meigs, Robert F., author
McGraw-Hill , 1973
Buku Teks
Hopewell, Rita, author
McGraw-Hill, 1979
Buku Teks