Ross, Shepley L.
John Wiley & Sons, 1980
Buku Teks
Coddington, Earl A.
Dover, 1989
Buku Teks
Birkhoff, Garrett
John Wiley & Sons, 1978
Buku Teks
Hsu, Sze-Bi
World Scientific, 2013
Buku Teks
Carrier, George F.
Society for Industrial and Applied Mathematics, 1991
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