Yuliati, author
Universitas Indonesia, 2005
UI - Tesis (Membership)
Kamm, Ernest R
Macmillan, 1981
Buku Teks
Lamintang, P.A.F., 1926-, author
Sinar Grafika, 2010
Buku Teks
Arnold, William R.
Houghton Mifflin, 1983
Buku Teks
Burfeind, James W. , author
Jones and Bartlett Publishers, 2011
Buku Teks