ROSIANA, C. Implementing Exchange Formation Activity to Improve Students’ Speaking Ability. Dharma Pendidikan, [S. l.], v. 12, n. 1, p. 1 - 9, 2021. Disponível em: https://journal.stkipnganjuk.ac.id/index.php/jdp/article/view/23. Acesso em: 29 apr. 2024.