Untung, author
Universitas Indonesia, 2013
UI - Tesis (Membership)
Universitas Indonesia, 1986
UI - Tugas Akhir
Dharma Susanto, author
Universitas Indonesia, 1985
UI - Tesis Membership
Artikel Jurnal
Royston, Michael G., author
Pergamon Press, 1979
Buku Teks