Universitas Indonesia, 1993
UI - Skripsi (Membership)
Joni Emerzon, author
Prenhallindo , 2002
Buku Teks
Universitas Indonesia, 1991
UI - Skripsi (Membership)
Universitas Indonesia, 1999
UI - Skripsi (Membership)
Universitas Indonesia, 1998
UI - Skripsi (Membership)