Ohiao Halawa, author
Nias, 1993
Buku Teks
Pradipta Kurniawati, author
Fakultas Teknik Universitas Indonesia, 2004
UI - Skripsi (Membership)
Universitas Indonesia, 1997
UI - Skripsi (Membership)
[publisher not identified], [date of publication not identified]
Buku Teks
Universitas Indonesia, 1991
UI - Skripsi (Membership)