Silverstein, Alvin
Rinehart and Winston, 1974
Buku Teks SO
Arya, Jagdish C.
Prentice-Hall, 1979
Buku Teks SO
Silverstein, Alvin
Rinehart Press , 1974
Buku Teks SO
Rubinow, S.I.
Society for Industrial and Applied Mathematics, 1973
eBooks
Milton, Janet Susan
McGraw-Hill, 1992
Buku Teks SO