Agus Riyadi, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1993
UI - Skripsi Membership
"Amsterdam: North-Holland Publishing Company, 1980",
Buku Teks
Greever, John, author
Brooks/Cole, 1969
Buku Teks
Hocking, John G.
Addison-Wesley, 1962
Buku Teks SO
Mansfield, Maynard J., author
Robert E. Krieger, 1972
Buku Teks SO