Effendi, Refki, Herpratiwi Herpratiwi, and Sugeng Sutiarso. “Pengembangan LKPD Matematika Berbasis Problem Based Learning Di Sekolah Dasar”. Jurnal Basicedu 5, no. 2 (March 17, 2021): 920–929. Accessed July 22, 2024. https://jbasic.org/index.php/basicedu/article/view/846.