Simanungkalit, Rick Hunter, Hardi Suyitno, Isnarto Isnarto, and Dwijanto Dwijanto. 2023. “Development Learning Devices To Improve Student’s Mathematical Literations”. Proceedings of International Conference on Science, Education, and Technology 7 (1):489-94. https://proceeding.unnes.ac.id/ISET/article/view/2003.