Application Of Project Based Learning Model To Improve Students’ Cooperative Attitude. Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran, [S. l.], v. 4, n. 2, p. 53–61, 2025. DOI: 10.58432/s8g2v671. Disponível em: https://mahir.yana.or.id/index.php/ejournal/article/view/2. Acesso em: 6 may. 2026.