Salmia, Salmia, Sudarmin Sudarmin, and Mujahidah Mujahidah. “Problem-Based Learning Combined With Realistic Mathematics Approach Grade V Elementary School”. Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi 10, no. 2 (February 7, 2023): 142–151. Accessed June 4, 2025. https://journal.uny.ac.id/index.php/jppfa/article/view/55581.