Suprapto, author
Widjaya, 1963
Buku Teks
Silalahi, Jetro, author
Universitas Indonesia, 1986
UI - Skripsi (Membership)
Suprapto, author
Persatuan, 1961
Buku Teks
Andi M. Asrun, author
Judicial Watch Indonesia, 2004
Buku Teks
Sihombing, Jonker, author
Alumni, 2010
Buku Teks