Wona, T.M.
Forestry Department Ministry of Industry and Primary Resources, 1994
Buku Teks
Marotta, Theodore W., author
Prentice-Hall, 1997
Buku Teks
Rosen, Harold J., author
John Wiley & Sons, 1979
Buku Teks
Frick, Heinz, author
Kanisius, 1999
Buku Teks
Bambang Suharno, author
Fakultas Teknik Universitas Indonesia, 1996
UI - Laporan Penelitian