Maulana, Lalu Muhammad Septian, Kosim Kosim, Muhammad Zuhdi, and Wahyudi Wahyudi. 2024. “Development of Student Worksheets Based on Problem Based Learning (PBL) Assisted by PhET Simulations to Improve Mastery of High School Physics Concepts”. AMPLITUDO : Journal of Science and Technology Innovation 3 (2):104-10. https://doi.org/10.56566/amplitudo.v3i2.196.