Tambunan, Emil H., author
Indonesia Publishing House, 2007
Buku Teks
Carnegie, Dale
Pionir Jaya, [date of publication not identified]
Buku Teks
Nandy Setiadi Djaya Putra, author
Fakultas Teknik Universitas Indonesia, 1996
UI - Laporan Penelitian
Brooks, Donna, author
Bhuana Ilmu Populer, 2005
Buku Teks
Yoga Abdul Rafi, author
Restu Agung, 2003
Buku Teks