Olmsted, John M. H.
Appleton-Century-Crofts, 1968
Buku Teks
Mulyadi, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2011
UI - Tesis (Open)
White, Paul A., author
Dickenson, 1966
Buku Teks
Noble, Ben, author
Prenticel-Hall, 1988
Buku Teks
Strang, Gilbert, author
Wellesley-Cambridge, 1993
Buku Teks