Heru, Heru, Refi Elfira Yuliani, Mazro'atul Khoeriyah, and Rieno Septra Nery. “Desain Modul Matematika Siswa Berbasis PMRI Kelas IV Sekolah Dasar”. Jurnal Pendidikan Matematika RAFA 6, no. 2 (December 31, 2020): 170–184. Accessed August 18, 2025. https://jurnal.radenfatah.ac.id/index.php/jpmrafa/article/view/11302.