Hanke, John E., author
Pearson - Prentice Hall, 2009
Buku Teks
Bratt, Elmer C., author
McGraw-Hill, 1958
Buku Teks
Hanke, John E., author
Prentice Halls, 2001
Buku Teks
Hanke, Jonh E., author
Pearson Prentice Hall, 2005
Buku Teks
Grangen, Clive William John, 1934-, author
Academic Press, 1989
Buku Teks