Tobing, David M. L., author
Timpani Publishing, 2007
Buku Teks
Universitas Indonesia, 2007
UI - Skripsi (Membership)
Universitas Indonesia, 2000
UI - Skripsi (Membership)
Khristine Agustina, author
2010
UI - Tesis (Open)
Burhanuddin S., author
UIN-Maliki Press, 2011
Buku Teks