?url_ver=Z39.88-2004&rft_id=10.11113%2Fmjfas.v15n6.1423&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Karim&rft.au=Karim%2C+Siti+Nurlaili&rft.aufirst=Siti+Nurlaili&rft.atitle=A+class+of+geometric+quadratic+stochastic+operator+on+countable+state+space+and+its+regularity&rft.issue=6&rft.pages=872+%E2%80%93+877&rft.date=2019&rft.volume=15&rft.issn=2289599X&rft.title=Malaysian+Journal+of+Fundamental+and+Applied+Sciences&rft.genre=article