Stanton, William J., author
Richard D. Irwin, 1964
Buku Teks
Shapiro, Benson P., author
McGraw-Hill, 1977
Buku Teks
Humphries, john
Groiler International, 1993
Buku Teks
Hughes, G. David, author
Addison-Wesley, 1983
Buku Teks
Spiro, Rosann L., author
McGraw-Hill-Irwin, 2003
Buku Teks