Sutomo
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1997
UI - Tesis Membership
Martin Schanz, Olaf Steinbach, editor
Springer, 2007
Buku Teks SO
Rosenfeld, Sam
Harvey House, 1965
Buku Teks SO
Allen, Theodore
McGraw-Hill Kogakusha, c1972
Buku Teks SO
Roberson, John A.
Houghton Miffiln, 1975
Buku Teks SO