MIN, Lee Sun; FLORIS, Flora Debora. Comparative Evaluation of Speaking and Writing Skills in Project Level 1 (4th Edition) and Achievers A1+. IJET (Indonesian Journal of English Teaching), [S. l.], v. 6, n. 1, p. 26–48, 2017. DOI: 10.15642/ijet2.2017.6.1.26-48. Disponível em: https://jurnalftk.uinsa.ac.id/index.php/IJET/article/view/87. Acesso em: 23 feb. 2026.