Pangaribuan, B.W. et al. 2022. The Implementation of Demonstration Method to Increase Learning Outcome in Natural Science Lessons. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini. 6, 4 (Mar. 2022), 3680–3692. DOI:https://doi.org/10.31004/obsesi.v6i4.1711.