Borovkov, K.A., author
Society for Industrial and Applied Mathematics, 1994
eBooks
Wade, Terence, author
Cambridge University Press, 2009
Buku Teks
Aleksandrova, Z.G., author
Sovetskaya Entsiklopedija, 1969
Buku Referensi
Amin Singgih, author
N.V Uitgeverij W. van Hoeve, 1969
Buku Referensi
Rusli Andi Atjo, author
Cikoro Trirasuandar, 2009
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