Fauzia, Nenden Latifah Ulfani, and Jajang Bayu Kelana. “Natural Science Problem Solving in Elementary School Students Using the Project Based Learning (PjBL) Model”. Jurnal Ilmiah Sekolah Dasar 4, no. 4 (March 1, 2021): 596–603. Accessed December 23, 2024. https://ejournal.undiksha.ac.id/index.php/JISD/article/view/28377.