Fakultas Teknik Universitas Indonesia, 1999
UI - Skripsi Membership
Crawford, R.J.
Pergamon Press, 1987
Buku Teks
Wordingham, J. A.
Littlefield, Adams & Co., 1967
Buku Referensi
Hertzberg, Richard W.
Academic Press, 1980
Buku Teks
Benjamin, B.S.
Van Nostrand Reinhold, 1969
Buku Teks