Pietro, Daniele Antonio Di
Springer, 2012
eBooks
Drozd, Yurij A.
Springer-Verlag, 1994
Buku Teks SO
Shields, Paul C.
Worth Publishers, 1980
Buku Teks SO
Ehrlich, Gertrude
PWS-Kentt Publishing, 1991
Buku Teks SO
Wed Giyarti
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
UI - Tesis Membership