Nargis Riana
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1991
UI - Skripsi Membership
Lane, Bennie R.
Prindle, Weber and Schmidt , 1973
Buku Teks SO
Kovacic, Michael L.
Prindle, Weber and Schmidt , 1971
Buku Teks SO
Nielsen, Kaj L.
Cliff's Notes, [Date of publication not identified]
Buku Teks SO
Olmsted, John M. H.
Appleton-Century-Crofts, 1968
Buku Teks SO