Patterson, Thomas E., author
McGraw-Hill, 203
Buku Teks
Melusky, Joseph A.
McGraw-Hill, 2000
Buku Teks
Clowers, Myles L., author
McGraw-Hill, 1973
Buku Teks
Adrian, Charles R., author
Mc Graw-Hill, 1976
Buku Teks
edited by I. William Zartman and William Mark Habeeb
Westerview Press, 1993
Buku Teks