Melcher, Arlyn J.
Rineka Cipta, 1994
Buku Teks
Melcher, Arlyn J
Rineka Cipta, 1990
Buku Teks
Baron, George, author
Rand McNally College, 1969
Buku Teks
Hoy, Wayne K., author
Random House , 1978
Buku Teks
Fipit Fatimah, author
Universitas Indonesia, 2011
UI - Tesis (Open)