Fakhroni, Ahmad Alfiyan, and Zutaah Puotier. “Efforts to Improve Mathematics Learning Outcomes Using Napier Bone Teaching Aids for Elementary School Students”. Interval: Indonesian Journal of Mathematical Education 1, no. 2 (December 21, 2023): 36-46. Accessed November 23, 2024. https://cahaya-ic.com/index.php/IJoME/article/view/779.