Nasution, S., R. Kartolo, S. Sutikno, and S. L. Nasution. “The Effectiveness of Children’s Song-Based Learning Method on Improving Indonesian Vocabulary Mastery in Elementary School Students”. International Journal of Educational Research Excellence (IJEREC), vol. 6, no. 1, Sept. 2026, pp. 772-80, doi:10.55299/ijerec.v6i1.2092.