The Application of Problem Based Learning to Improve Students Speaking Skill of The Eleventh Grade Students at SMK TKM Teknik Kebumen. ELTT, [S. l.], v. 10, n. 1, p. 182–188, 2024. Disponível em: https://proceeding.unpkediri.ac.id/index.php/eltt/article/view/6841. Acesso em: 28 aug. 2026.