Reference this Research Paper (copy & paste below code):
Ibrahim M. and M.S.Magami
(2019); On fixed decomposition of non-deranged permutations; International Journal of Scientific and Research Publications (IJSRP)
9(12) (ISSN: 2250-3153), DOI: http://dx.doi.org/10.29322/IJSRP.9.12.2019.p9620