TRIYONO, A.; NURIMANI, N.; BUDIONO, B. Elementary school students’ ability to understand the elements and properties of simple flat shapes. Panicgogy International Journal, [S. l.], v. 2, n. 2, p. 44–60, 2024. DOI: 10.59965/pij.v2i2.152. Disponível em: https://nakiscience.com/index.php/pij/article/view/152. Acesso em: 30 oct. 2025.