Prastyaningrum, I., Alfina, A. and Shella, G. 2025. Observational Study Implementation of STEAM Activities to Stimulate 21st Century Skills in Early Childhood. Journal of Instructional and Development Researches. 5, 5 (Oct. 2025), 560-568. DOI:https://doi.org/10.53621/jider.v5i5.614.