Rajawali, 1981
Buku Teks
Siregar, Sutji Rochani D., author
1991
UI - Tesis (Membership)
Sujudi, author
Universitas Indonesia. Lembaga Penelitian, 1986
UI - Laporan Penelitian
Nur Dyah Gianawati
1991
UI - Tesis (Membership)
Wirzon. B, author
1990
UI - Tesis (Membership)