?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Ningrum%2C+Lina+Kustia&rft.aufirst=Lina+Kustia&rft.aulast=Ningrum&rft.date=31+October+2019&rft.inst=Universitas+Prof.Dr.+Hamka&rft.title=Pengaruh+Model+PBL+(Problem+Based+Learning)+Terintegrasi+Stem+(Science%2C+Technology%2C+Engineering%2C+and+Mathematics)+Terhadap+Kemampuan+Literasi+Sains+Peserta+Didik+Pada+Konsep+Ekosistem&rft.degree=Bachelor