Dorian, A.F.
Elsevier Scientific Publishing Company, 1981
Buku Referensi
Messinger, Heinz
Langenscheidt, 1993
Buku Referensi
Goulden, W. O.
Little, Brown, 1955
Buku Referensi
Engel, Thomas
Pearson Prentice Hall, 2008
Buku Teks
Sutton, Raul
CRC Press, Taylor & Francis Group, 2009
Buku Teks