Sari, Jenni, Rayandra Asyhar, and Sri Purwaningsih. “Integrated Science Learning Devices on Substances and Their Characteristics Material With Character Enrichment Through the Application of Problem-Based Learning”. Integrated Science Education Journal 4, no. 3 (September 19, 2023): 90-95. Accessed November 22, 2024. https://cahaya-ic.com/index.php/ISEJ/article/view/691.