Gordon, Sheldon P., author
McGraw-Hill, 1994
Buku Teks
Lathrop, Thomas G., author
Wadsworth, 1965
Buku Teks
Bailey, Edward P., author
Charles E. Merrill, 1984
Buku Teks
Kunz, Christina L., author
West Publishing, 2013
Buku Teks
Kunz, Christina L., author
West Publishing, 2010
Buku Teks