SINURAT, Nita Utami; RAJA, Julita Lumban; SIADARI, Maretta Kesya; DOLOKSARIBU, Dominique Sandra; SILALAHI, Dumaris. The Effectiveness of English Songs to Improve Students’ Speaking Skills by Using Problem-Based Learning Methods in Grade XIth Students at SMKS 1 Tamansiswa Pematangsiantar. Innovative: Journal Of Social Science Research, [S. l.], v. 5, n. 1, p. 5697–5711, 2025. DOI: 10.31004/innovative.v5i1.17988. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/17988. Acesso em: 7 jul. 2026.