?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=T.&rft.au=Havinga%2C+T.&rft.aulast=Havinga&rft.title=The+impact+of+internal+migration+on+fertility&rft.tpages=21&rft.date=2022&rft.degree=Bachelor