Widanti, Adima Putri, and Moh. Fathurrahman. “Development of Digital Learning Materials Using a QR Code Based Book Creator Application to Improve Student Learning Outcomes in Science Subjects”. Jurnal Penelitian Pendidikan IPA 10, no. 10 (October 25, 2024): 7885–7893. Accessed November 21, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/7933.