edited by C. Taylor, K. Morgan
Pineridge Press, 1980
Buku Teks
Potter, Merle C., author
Prentice-Hall, 1997
Buku Teks
Potter, Merle C., author
CT Cengage Learning, 2012
Buku Teks
Rouse, Hunter
Wiley Eastern Private, 1946
Buku Teks
Shames, Irving H.
McGraw-Hill, 1982
Buku Teks