Simmons, George F.
McGraw-HIll, 1996
Buku Teks
Simmons, George F.
McgRaw-Hill, 1985
Buku Teks
Thomas, George B., author
Addison-Wesley, 1977
Buku Teks
Thomas, George B., author
Addison-Wesley, 1968
Buku Teks
Larson, Ron, 1941-, author
D.C. Heath, 1990
Buku Teks