Block, B. Peter
ACS Professional Reference Book, 1990
Buku Teks
Chiswell, B.
John Wiley & Sons, 1969
Buku Teks
Dodd, R.E.
Elsevier, 1957
Buku Teks
Bowser, James R., author
Brooks/Cole, 1993
Buku Teks
Mark, James E., author
Prentice Hall International, 1992
Buku Teks