Christian Danneto
Universitas Indonesia, 2013
UI - Skripsi (Membership)
Sy. N. Zarmini
Universitas Indonesia, 2006
UI - Tesis (Membership)
Chatburn, Robert L.
Jones & Bartlett Learning, 2011
Buku Teks
Kennamer, Mike
Thomson/Delmar Learning, 2005
Buku Teks
Willis, Marjorie Canfield
J.B. Lippincott, 2008
Buku Teks