Application of the Science, Technology, Engineering, and Mathematics (STEM) Approach Assisted by PhET Simulation to Improve Junior High School Students’ Science Process Skills on Atomic Structure Material. JIPK [Internet]. 2025 Apr. 25 [cited 2025 Dec. 5];19(1):82-7. Available from: https://journal.unnes.ac.id/journals/JIPK/article/view/11305