Chesterman, Andrew, author
Cambridge University Press, 1991
Buku Teks
Jaschke, H.A.
London : Routledge & Kegan Paul Ltd., 1949.
Buku Teks
Jaschke, H. A., author
Trubner and Co. Ludgate Hill, 1882
Buku Referensi
Sugeng Hariyanto, author
Inspira, 2015
Buku Teks
Batten,T.R., author
Oxford University Press, 1960
Buku Teks