Maulana, L. M. S., K. Kosim, M. Zuhdi, and W. Wahyudi. “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, vol. 3, no. 2, Aug. 2024, pp. 104-10, doi:10.56566/amplitudo.v3i2.196.