Wijanarko, T. et al. 2024. The Role of Natural Schools in Cultivating 4C Skills to Face the Challenges of the 21st Century . Jurnal Penelitian Pendidikan IPA. 10, 3 (Mar. 2024), 1048–1055. DOI:https://doi.org/10.29303/jppipa.v10i3.6556.