Desmiwati, Riti, Ratnawulan Ratnawulan, and Yulkifli Yulkifli. “Validitas LKPD Fisika SMA Menggunakan Model Problem Based Learning Berbasis Teknologi Digital”. JURNAL EKSAKTA PENDIDIKAN (JEP) 1, no. 1 (September 11, 2017): 33-38. Accessed November 21, 2024. https://jep.ppj.unp.ac.id/index.php/jep/article/view/31.