Nasution, S., Kartolo, R., Sutikno, S. and Nasution, S.L. 2026. 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). 6, 1 (Sep. 2026), 772–780. DOI:https://doi.org/10.55299/ijerec.v6i1.2092.