[publisher not identified], [date of publication not identified]
Naskah
Zeffry Alkatiri, author
Komunitas Bambu, 2004
Buku Teks
D.A. Sumantri, author
Ind-Hill, 1988
Buku Teks
Ishak Rafick, author
Buku Teks
Gunawan Tjahjono, author
Fakultas Teknik Universitas Indonesia, 2000
UI - Laporan Penelitian