Ayres, Frank, 1901-1994, author
McGraw-Hill, 1992
Buku Teks
Bruckner, Andrew M.
American Mathematical Society, 1994
Buku Teks
Milici, Constantin, author
Springer Cham, 2019
eBooks
Williamson, Richard E.
Prentice-Hall, 1979
Buku Teks
Magnus, Jan R.
John Wiley & Sons, 1999
Buku Teks