Seimer, Stanley J.
Syracuse University Press , 1959
Buku Teks
Downing, Douglas, author
Jakarta Erlangga 1990
Buku Referensi
Bahtera, author
ITB Press, 2013
Buku Teks
Mouly, George J.
American Book, 1963
Buku Teks
French, Warron
New York Twayne Publisher 1963
Buku Teks