Ismaniar, I., S. . Utoyo, N. . Hazizah, . S. . Murni, and C. . Handrianto. “A Music-Based Relay Intervention (Estafet Bait Lagu) Improves Attention in Early Childhood Classrooms: Evidence from Indonesian Kindergartens”. International Journal of Learning, Teaching and Educational Research, vol. 24, no. 7, July 2025, pp. 525-5, http://www.ijlter.net/index.php/ijlter/article/view/2410.