Sari J, Asyhar R, Purwaningsih S. Integrated Science Learning Devices on Substances and Their Characteristics Material with Character Enrichment Through the Application of Problem-Based Learning. In. Sci. Ed. J [Internet]. 2023Sep.19 [cited 2024Jul.22];4(3):90-5. Available from: https://cahaya-ic.com/index.php/ISEJ/article/view/691