New York: McGraw-Hill, 2002,
Buku Teks
McGraw-Hill, 2003
Buku Referensi
Tillery, Bill W., author
McGraw-Hill, 2013
Buku Teks
Geoff Green, Ken Petford, Alan Short, David Walker
John Muray, 1975
Buku Referensi
Pomeroy, John H.
Holt, Rinehart and Winston, 1964
Buku Teks