Potter, Merle C., author
CT Cengage Learning, 2012
Buku Teks
Potter, Merle C., author
Prentice-Hall, 1997
Buku Teks
Rouse, Hunter
Wiley Eastern Private, 1946
Buku Teks
Shames, Irving H.
McGraw-Hill, 1982
Buku Teks
Trefil, J.S., author
Pergamon Press, 1975
Buku Teks