Devereuk, S. C.
Heinemann Educational books Ltd, 1966
Buku Teks
Wilson, Arthur, author
Longman, 1966
Buku Teks
Asean University Network,
Majalah, Jurnal, Buletin
Titherington, D., author
McGraw-Hill, McGraw-Hill, 1982
Buku Teks
Faculty of science & engineering Waseda University, 2007
Majalah, Jurnal, Buletin