Nurlela Sari, Mohamad Syarif Sumantri, and Ishak G Bachtiar. “The Development of Science Teaching Materials Based on STEM to Increase Science Literacy Ability of Elementary School Students”. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE 4, no. 7 (July 5, 2018): 161–169. Accessed March 29, 2024. https://ijasre.net/index.php/ijasre/article/view/513.