Simatupang, P. Andrew, author
Universitas Indonesia, 2001
UI - Skripsi (Membership)
Vera Dewi Rochyati, author
Universitas Indonesia, 2002
UI - Tesis Membership
Universitas Indonesia, 2002
UI - Skripsi (Membership)
Hamud M. Balfas, author
Tatanusa, 2006
Buku Teks
Sinulingga, Budiman, author
Universitas Indonesia, 1994
UI - Skripsi (Membership)