Kurniasih, Deka Intan, Baedhowi Baedhowi, and Sudiyanto Sudiyanto. “Media E-Book Berbasis Problem Based Learning Dalam Mata Pelajaran Ekonomi”. Surya Edunomics 3, no. 1 (May 31, 2019): 49-61. Accessed December 21, 2024. https://jurnal.umpwr.ac.id/index.php/suryaedunomics/article/view/1053.