Solymar, L.
Oxford University , 1993
Buku Teks
Henkel, Daniel P., author
McGraw-Hill, Higher Education, 2002
Buku Teks
Cordon, William E.
McGraw-Hill, 1979
Buku Teks
Keyser, Carl A.
Prentice-Hall, 1956
Buku Teks
editor, E.P. Wohlfarth
North-Holland, 1980
Buku Referensi