editor, Milton Kaufman, Arthur H. Seidman
McGraw-Hill, 1984
Buku Referensi
Bolton, William, 1933-
Nwenes, 1994
Buku Teks
Titherington, D.
McGraw-Hill, McGraw-Hill, 1982
Buku Teks
Devereuk, S. C.
Heinemann Educational books Ltd, 1966
Buku Teks
Faculty of science & engineering Waseda University, 2007
Majalah, Jurnal, Buletin