SETIAWAN, Arif; PRANOWO, Dwiyanto Djoko. Developing speaking skill learning materials based on Natural Order Hypothesis. LingTera, [S. l.], v. 9, n. 1, p. 36–52, 2022. DOI: 10.21831/lt.v9i1.54358. Disponível em: https://journal.uny.ac.id/index.php/ljtp/article/view/54358. Acesso em: 12 may. 2025.