Collatz, Lothar, author
Academic Press, 1966
Buku Teks
edited by Themistocles M. Rassias, Janusz Brzdek
Springer Science, 2012
eBooks
Nik, Weaver, author
World Scientific, 2013
Buku Teks
Joshi, Mohan C., author
Wiley Eastern, c1985
Buku Teks
Devito, Carl L., author
Addison-Wesley, 1990
Buku Teks