Bona, C., author
CISM, 1972
Buku Teks
Clarke, D., author
Wiley, 1978
Buku Teks
Wini Sri Wahyuni, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2019
UI - Tesis (Membership)
Ramamurti, V., author
Tata McGraw-Hill, 1992
Buku Teks
Prince, M. David, author
Addison-Wesley, 1971
Buku Teks