Long, Larry E.
Prentice-Hall, 1989
Buku Teks
Murdick, Robert G.
Prentice -Hall, 1974
Buku Teks
edited by M.K. Singh, A. Bhattacharya
SSMB Publishing Division, 1995
Buku Teks
Applegate, Lynda M.
McGraw-Hill, 2009
Buku Teks
by James I. Cash ... [and others]
Richard D. Irwin , 1998
Buku Teks