GÜLÇIN TAN SISMAN; MERAL AKSU. Seventh Grade Students’ Success on the Topics of Area and Perimeter. Elementary Education Online, [S. l.], v. 8, n. 1, p. 243–253, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/2402. Acesso em: 23 jul. 2024.