The implementation of project-based learning in increasing speaking achievement and self-confidence. Indonesian Educational Administration and Leadership Journal (IDEAL), [S. l.], v. 1, n. 1, p. 4-14, 2019. DOI: 10.22437/ideal.v1i1.6605. Disponível em: https://online-journal.unja.ac.id/IDEAL/article/view/6605. Acesso em: 26 nov. 2024.