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eBooks
Negoita, Constantin Virgil, author
The Benjamin Cumming Pub., 1985
Buku Teks
Kosko, Bart, author
Prentice-Hall, 1992
Buku Teks
Ahmad Nafiys Ismail, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
UI - Skripsi (Membership)
Lin, Chin-Teng, author
Prentice-Hall, 1996
Buku Teks