Luthfia, F. “Meningkatkan Hasil Belajar Mata Pelajaran IPAS Materi Gaya Pegas Melalui Model Project Based Learning (PBL) Pada Siswa SD”. JPRONUS - Jurnal Pendidikan Profesi Guru Nusantara, Vol. 1, no. 01, June 2024, pp. 24-30, https://jurnal-lp2m.umnaw.ac.id/index.php/jppg/article/view/3085.