Karmila M, Muhtarom M. Social Behavior of Early Childhood Through Playing Beams Activity. J. Obs. J. Pendidik. Anak Usia Dini [Internet]. 2021 Mar. 26 [cited 2026 Oct. 11];6(1):38-44. Available from: https://obsesi.or.id/index.php/obsesi/article/view/1198