Dalela, Suresh
Delhi Stadard Pual Dist, 1977
Buku Teks
Barnes, Ralph M. (Ralph Mosser), author
John Wiley & Sons, 1980
Buku Teks
Lintern, D.G.
Pitman & Sons, Ltd., 1958
Buku Teks
Meyers, Fred E., author
Prentice-Hall, c1992
Buku Teks
Niebel, Benjamin W., author
McGraw-Hill, c2003.
Buku Teks