?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Gufron+Amirullah&rft.au=Gufron+Amirullah%2C+Gufron&rft.aufirst=Gufron&rft.title=Biodik%3A+Jurnal+Ilmiah+Pendidikan+Biologi&rft.atitle=Pengaruh+Strategi+Predict+Observe+Explain+(POE)+Terhadap+Kemampuan+Berpikir+Kritis+Siswa&rft.genre=article