?url_ver=Z39.88-2004&rft_id=MTMT%3A34123727+10.3390%2Fmath11153298&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Alharbi+Mohammed+H.&rft.aufirst=Mohammed+H.&rft.aulast=Alharbi&rft.volume=11&rft.title=MATHEMATICS&rft.date=2023&rft.issn=2227-7390&rft.issue=15&rft.atitle=Analyzing+the+Dynamics+of+a+Periodic+Typhoid+Fever+Transmission+Model+with+Imperfect+Vaccination&rft.genre=article