Suryani, Rani, and WidodoAri. “Content Analysis of the Nature of Science in the Thematic Learning Book for Lower Grade Elementary School 2013 Curriculum”. International Conference on Elementary Education 4, no. 1 (April 14, 2022): 596-608. Accessed May 20, 2024. http://proceedings.upi.edu/index.php/icee/article/view/2034.