F. R. Jones, editor
Longman Scientific & Technical, 1994
Buku Referensi
Rempp, Paul
Huthing and Verlag Basel , 1991
Buku Teks
Koningsveld, R.
Oxrord University Press, 2008
Buku Teks
Stevens, Malcolm P.
Oxford Univertity Press, 2009
Buku Teks
Ahluwalia, V.K.
Taylor and Francis, 2008
Buku Teks