Alfarisi, Ahmad Rifqi, and Feny Rita Fiantika. “Spatial Thinking Process of Curved-Sided Room Building Material for Grade V Elementary School Based on Ecomathematics”. Formosa Journal of Applied Sciences 3, no. 9 (September 10, 2024): 3667–3676. Accessed September 19, 2024. https://journal.formosapublisher.org/index.php/fjas/article/view/10914.