Sasamira, Indriyani, James U L. Mangobi, and Ontang Manurung. “Penerapan Model Problem-Based Learning Berbantuan Alat Peraga Roda Berputar Pada Materi Kubus”. Jurnal Riset dan Inovasi Pembelajaran 4, no. 2 (August 5, 2024): 1119–1132. Accessed August 24, 2025. https://etdci.org/journal/jrip/article/view/1608.