?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Umar%2C+M.&rft.aufirst=M.&rft.aulast=Umar&rft.title=Contraceptive+use%2C+Knowledge+and+Communication%3B+A+study+of+the+perceptions+and+experiences+of+the+Pakistani+married+youth&rft.degree=Master&rft.date=2008