SARI, Puspita. IMPROVING STUDENTS™ SPEAKING ACHIEVEMENT THROUGH PUBLIC SPEAKING TASKS. TRANSFORM: Journal of English Language Teaching and Learning, North Sumatera, Indonesia, v. 1, n. 1, 2012. DOI: 10.24114/tj.v1i1.367. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jelt/article/view/367. Acesso em: 15 oct. 2025.