Batten, J.D.
D.B. Taraporevala Sons & Co., 1963
Buku Teks SO
Phelps, D.M.
Richard D. Irwin , 1953
Buku Teks SO
Berman, Howard J.
The University of Mincigan, 1982
Buku Teks
Critchfield, Howard J.
Prentice-Hall, 1979
Buku Teks
Dalrymple, Douglas J.
John Wiley & Sons, 1983
Buku Teks SO