Norris, A.C., author
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Buku Teks
Bornemann, Folkmar, author
Society for Industrial and Applied Mathematics, 2004
eBooks
Clarendon Press, 1990
Buku Teks
Johnson, Lee W., author
Addison-Wesley, 1977
Buku Teks
Endaryono, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013
UI - Tesis (Membership)