Henke, Emerson O.
PWS-Kent Publishing, 1988
Buku Teks
Wilson, Earl R., author
McGraw--Hill , 2010
Buku Teks
Wilson, Earl R., author
McGraw-Hill, 2004
Buku Teks
Wilson, Earl R., author
McGraw-Hill Book , 1999
Buku Teks
Mikesell, R.M., author
Richard D. Irwin, 1961
Buku Teks