Grandis, Rosalia Tunika, Insih Wilujeng, and Suyanta Suyanta. 2023. “Analysis of Problem Solving Skills of Class VII Students on Earthquake Material and Mitigation”. Jurnal Penelitian Pendidikan IPA 9 (3):1064-68. https://doi.org/10.29303/jppipa.v9i3.2958.