Chatov, Robert
Free Press, 1975
Buku Teks
Mulford, Charless W., author
PPM, 2010
Buku Teks
Brownlee, E. Richard, author
McGraw-Hill, 2001
Buku Teks
Brownlee, E. Richard, author
Irwin, 1998
Buku Teks
Pasco, Gregory A., author
CRC Press, 2009
Buku Teks