Artikel Jurnal
Hardjito Notopuro, author
Ghalia Indonesia, 1979
Buku Teks
Hardjito Notopuro, author
Ghalia Indonesia, 1984
Buku Teks
Mann, Richard I., author
Gateway Books , 1994
Buku Teks
Endriatmo Soetarto, author
Universitas Indonesia, 1987
UI - Tesis (Membership)