Ratnaningsih, Tri. “Fostering students’ Motivation to Learn Mathematics through Steam Project Using 4DFrame Toolkit”. Math Didactic: Jurnal Pendidikan Matematika 8, no. 3 (Desember 30, 2022): 231-241. Diakses Agustus 1, 2025. https://jurnal.stkipbjm.ac.id/index.php/math/article/view/1442.