Bernardus Richard Saputra, et al. “Penerapan Pendekatan Realıstıc Mathematıcs Educatıon (RME) Untuk Menıngkatkan Pemahaman Konsep Matematıs Sıswa Sekolah Dasar”. Journal of Innovation in Primary Education, vol. 1, no. 2, Dec. 2022, pp. 152-6, https://ejournal.unma.ac.id/index.php/jipe/article/view/3940.