Loffel, Egon W.
John Wiley & Sons, 1977
Buku Teks
Shaw, Donald R
Van Nostrand Reinhald, 1981
Buku Teks
Downie, N. M.
Harper & Row, Pub., 1974
Buku Teks SO
Helmstetter, Greg, 1967-
John Wiley & Sons, 1997
Buku Teks SO
Cain, Brian
Grolier International, 1999
Buku Teks