Anwar, P.I. et al. 2023. Study of Physics Concepts in Cave Exploration Activities to Develop Physics Edupark Digital Book for Senior High School Students. Jurnal Penelitian Pendidikan IPA. 9, 6 (Jun. 2023), 4431–4442. DOI:https://doi.org/10.29303/jppipa.v9i6.3408.