Sinurat, N. U., Raja, J. L., Siadari, M. K., Doloksaribu, D. S., & Silalahi, D. (2025). 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, 5(1), 5697–5711. https://doi.org/10.31004/innovative.v5i1.17988