Fitriyanti F, F F, Zikri A. Peningkatan Sikap dan Kemampuan Berpikir Ilmiah Siswa Melalui Model PBL di Sekolah Dasar. basicedu [Internet]. 2020 Apr. 20 [cited 2025 Jun. 1];4(2):491-7. Available from: https://www.jbasic.org/index.php/basicedu/article/view/376