Nettina, Sandra M., author
Lippincott , 1997
Buku Teks
Cutts, Martin, author
Oxford University Press, 1995
Buku Teks
edited by Malcolm Godden and Michael Lapidge
Cambridge University Press, 1991
Buku Teks
Mandl, Matthew, author
Prentice-Hall, 1967
Buku Teks
Direktorat Jendral Pengairan
Badan Penerbit Pekerjaan Umum, 1983
Buku Referensi