TAMBUNAN, Y. N. .; SIREGAR, C.; SITUMORANG, T. E. Differences in Learning Outcomes Mathematics Student Using the Jigsaw Method and Contextual Teaching Learning in the Principal Discussion Rectangular Flat Building. International Journal of Educational Research Excellence (IJERE), [S. l.], v. 3, n. 1, p. 101–109, 2024. DOI: 10.55299/ijere.v3i1.790. Disponível em: https://ejournal.ipinternasional.com/index.php/ijere/article/view/790. Acesso em: 15 may. 2024.