Snider, Harold Wayne
Richard D. Irwin , 1956
Buku Teks
Harrington, Michael K., author
Jones & Bartlett Learning, 2016
Buku Teks
Mowbray, Albert H., author
McGraw-Hill, c1969
Buku Teks
Keeton, Robert E., author
Dow Jones-Irwin, Inc., 1967
Buku Teks
Keeton, Robert E., author
Little, Brown and Co., 1965
Buku Teks