Vickery, B.C. (Brian Campbell), author
Butterworth, 1975
Buku Teks
Aitchison, Jean, 1938-, author
Unesco, 1977
Buku Referensi
Aitchison, Jean, 1938-, author
Unesco, 1977
Buku Referensi
Rowley, Jennifer, author
Clive Bingley, 1988
Buku Teks
Salton, Gerard, author
Society for Industrial and Applied Mathematics, 1975
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