MASFARATNA , M., & ROSADI, A. (2023). PENERAPAN MODEL PROBLEM BASED LEARNING BERBANTUAN MEDIA BERBASIS WEB AN EXAMPLE OF TIME DILATION TEORI RELATIVITAS KHUSUS EINSTEIN. Jurnal Hasil Penelitian Dan Pengembangan (JHPP), 1(4), 234–239. https://doi.org/10.61116/jhpp.v1i4.189