Universitas Indonesia, 2004
UI - Tesis (Membership)
Chappell, James
Watson-Guptill Publications, 1991
Buku Teks
Gema Putra Mahardhika, author
Universitas Indonesia, 2009
UI - Skripsi (Open)
Universitas Indonesia, 2007
UI - Skripsi (Membership)
Universitas Indonesia, 2005
UI - Skripsi (Membership)