. Sirumahombar, Ayu Ratna P, and Elvi Mailani. “Pengembangan Bahan Ajar E-Handout Berbasis Aplikasi Melalui Model Problem Based Learning Pada Materi Kecepatan Di Kelas V”. Innovative: Journal Of Social Science Research 3, no. 2 (May 22, 2023): 4074–4085. Accessed October 7, 2026. https://j-innovative.org/index.php/Innovative/article/view/801.