Nira, Nira, Redo Andi Marta, and Mery Noviyanti. “Pengembangan Lembar Kerja Peserta Didik Berbasis Problem Based Learning Pada Mata Pelajaran Matematika Di Sekolah Dasar”. Journal of Education Research 5, no. 4 (October 31, 2024): 5137–5145. Accessed July 2, 2025. https://jer.or.id/index.php/jer/article/view/1591.